{"id":54672,"date":"2026-11-03T07:16:10","date_gmt":"2026-11-03T07:16:10","guid":{"rendered":"https:\/\/carmelcosmeticslabs.com\/?page_id=54672"},"modified":"2026-11-05T12:26:07","modified_gmt":"2026-11-05T12:26:07","slug":"hydrolyzed-keratin","status":"publish","type":"page","link":"https:\/\/carmelcosmeticslabs.com\/en\/glossary-cosmetic-ingredients\/hydrolyzed-keratin\/","title":{"rendered":"Hydrolyzed keratin"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"54672\" class=\"elementor elementor-54672 elementor-54486 elementor-bc-flex-widget\" data-elementor-post-type=\"page\">\n\t\t\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-1687c24 e-flex e-con-full e-con e-parent\" data-id=\"1687c24\" data-element_type=\"container\" data-e-type=\"container\" id=\"ing-keratine\">\n\t\t\t\t<div class=\"elementor-element elementor-element-382ecfa elementor-widget elementor-widget-html\" data-id=\"382ecfa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<style>.ig{--bg:#fbfdfc; --paper:#ffffff; --mint:#edf5f2; --mint-2:#dcebe6;\n  --ink:#10292a; --ink-2:#3d5557; --muted:#5b7173;\n  --teal:#2f7266; --teal-strong:#245a51; --on-teal:#ffffff;\n  --deep:#0f3a35; --deep-ink:#e9f4f1; --deep-muted:#a9c9c2; --deep-field:#174842;\n  --hair:rgba(16,41,42,.10); --btn-bg:#0f3a35; --btn-fg:#ffffff; --btn-hover:#134a43; --knob-bg:#ffffff; --knob-fg:#0f3a35; --btn-shadow:0 16px 34px -16px rgba(15,58,53,.7); --scrim:rgba(8,24,23,.32); --float:0 12px 32px rgba(8,24,23,.16),0 2px 6px rgba(8,24,23,.08);\n  --f-display:\"Proxima Nova\",\"Figtree\",system-ui,-apple-system,\"Segoe UI\",sans-serif;\n  --f-body:\"Lato\",system-ui,-apple-system,\"Segoe UI\",sans-serif;\n  --ease-out:cubic-bezier(0.23,1,0.32,1); --ease-drawer:cubic-bezier(0.32,0.72,0,1);\n  --wrap:1200px; --hdr:0px; --bm:0px; --bar:56px;\n  interpolate-size:allow-keywords;}\n.ig{background:var(--bg);color:var(--ink);font:400 17px\/1.6 var(--f-body);-webkit-font-smoothing:antialiased}\n.ig{overflow-x:clip}\n.ig *{box-sizing:border-box}\n.ig a{color:inherit}\n.ig h1,.ig h2,.ig h3,.ig h4{font-family:var(--f-display);font-weight:600;color:var(--ink);text-wrap:balance;margin:0}\n.ig p{margin:0}\n.ig button{font:inherit;color:inherit}\n.ig .wrap{max-width:var(--wrap);margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}\n@media (min-width:720px){.ig .wrap{padding-left:max(32px,env(safe-area-inset-left,0px));padding-right:max(32px,env(safe-area-inset-right,0px))}}\n.ig .sec{padding-block:96px;scroll-margin-top:calc(var(--hdr) + var(--bar))}\n@media (max-width:719px){.ig .sec{padding-block:64px}}\n.ig .h2{font-size:clamp(28px,3.4vw,40px);line-height:1.1;letter-spacing:-.02em}\n.ig .lede{color:var(--ink-2);max-width:62ch;margin-top:16px}\n.ig .txt-link{color:var(--teal-strong);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;transition:color 150ms var(--ease-out)}\n.ig .txt-link:hover{color:var(--ink)}\n.ig :focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:4px}\n.ig .num{font-variant-numeric:tabular-nums}\n.ig .seg{display:inline-flex;flex-wrap:wrap;gap:4px;padding:4px;border-radius:999px;background:var(--mint)}\n.ig .seg button{border:0;background:transparent;cursor:pointer;height:36px;padding:0 16px;border-radius:999px;font:500 15px\/1 var(--f-display);color:var(--ink-2);display:inline-flex;align-items:center;gap:6px;\n  transition:background-color 150ms var(--ease-out),color 150ms var(--ease-out),transform 160ms var(--ease-out)}\n.ig .seg button:hover{color:var(--ink)}\n.ig .seg button:active{transform:scale(.97)}\n.ig .seg button[aria-pressed=\"true\"],.ig .seg button[aria-selected=\"true\"]{background:var(--paper);color:var(--ink)}\n.ig .seg button span{color:var(--muted);font-variant-numeric:tabular-nums}\n.ig .ref{font:600 12px\/1 var(--f-display);vertical-align:super;margin-left:2px;color:var(--teal-strong);text-decoration:none;display:inline-block;padding:3px 4px;border-radius:4px;cursor:pointer;transition:background-color 150ms var(--ease-out)}\n.ig .ref:hover,.ig .ref[aria-expanded=\"true\"]{background:var(--mint-2)}\n.ig .pop,.ig .pop *,.ig .fab,.ig .fab *{box-sizing:border-box}\n.ig .tag{display:inline-block;margin-left:6px;color:var(--muted);font-size:14px}\n.ig .pop{position:fixed;z-index:60;width:min(360px,calc(100vw - 32px));background:var(--paper);color:var(--ink);border-radius:12px;box-shadow:var(--float);padding:20px;\n  opacity:0;transform:scale(.96);pointer-events:none;transition:opacity 150ms var(--ease-out),transform 150ms var(--ease-out)}\n.ig .pop.open{opacity:1;transform:scale(1);pointer-events:auto}\n.ig .pop-n{font:600 13px\/1 var(--f-display);color:var(--teal-strong)}\n.ig .pop-body{margin-top:8px;font-size:15px;line-height:1.5;color:var(--ink-2)}\n.ig .pop-body em{font-style:normal;color:var(--ink);font-weight:700}\n.ig .pop-body a{color:var(--teal-strong);overflow-wrap:anywhere}\n.ig .pop-foot{margin-top:16px;display:flex;justify-content:space-between;gap:16px;font-size:14px}\n.ig .pop-x{border:0;background:none;cursor:pointer;color:var(--muted);padding:0}\n.ig .pop-x:hover{color:var(--ink)}\n.ig .scrim{position:fixed;inset:0;z-index:59;background:var(--scrim);opacity:0;pointer-events:none;transition:opacity 200ms var(--ease-out)}\n@media (max-width:640px){.ig .pop{left:0!important;right:0;top:auto!important;bottom:0;width:100%;border-radius:16px 16px 0 0;padding:24px max(20px,env(safe-area-inset-left,0px)) calc(24px + env(safe-area-inset-bottom,0px));\n    transform:translateY(100%);opacity:1;transition:transform 320ms var(--ease-drawer)}\n.ig .pop.open{transform:translateY(0)}\n.ig .pop::before{content:\"\";display:block;width:40px;height:4px;border-radius:2px;background:var(--mint-2);margin:-8px auto 16px}\n.ig .scrim.open{opacity:1;pointer-events:auto}}\n.ig .crumbs{padding-top:24px;font-size:14px;color:var(--muted)}\n.ig .crumbs ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}\n.ig .crumbs li+li::before{content:\"\u203a\";margin-right:8px}\n.ig .crumbs a{text-decoration:none;transition:color 150ms var(--ease-out)}\n.ig .crumbs a:hover{color:var(--ink)}\n.ig .hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:64px;align-items:center;padding-block:40px 72px}\n.ig .hero-copy{min-width:0}\n.ig .hero h1{font-size:clamp(44px,6vw,80px);line-height:.98;letter-spacing:-.035em}\n.ig .brief{margin-top:24px;font-size:19px;line-height:1.6;max-width:34em}\n.ig .byline{margin-top:24px;display:flex;align-items:center;gap:12px;font-size:14px;color:var(--muted)}\n.ig .avatar{width:40px;height:40px;border-radius:50%;background:var(--deep);color:var(--deep-ink);display:grid;place-items:center;font:600 14px\/1 var(--f-display);flex:none}\n.ig .byline strong{display:block;color:var(--ink);font:600 15px\/1.3 var(--f-display)}\n.ig .actions{margin-top:32px;display:flex;flex-wrap:wrap;align-items:center;gap:24px}\n.ig .btn{display:inline-flex;align-items:center;justify-content:center;gap:12px;padding:11px 11px 11px 26px;min-height:50px;border-radius:99px;border:0;cursor:pointer;white-space:nowrap;text-decoration:none;\n  background:var(--btn-bg);color:var(--btn-fg);font:700 15.5px\/1 var(--f-body);box-shadow:var(--btn-shadow);\n  transition:transform 160ms var(--ease-out),box-shadow 250ms ease,background-color 200ms ease}\n.ig .btn,.ig .fab .btn{color:var(--btn-fg)}\n.ig .btn:hover{background:var(--btn-hover)}\n.ig .btn:active{transform:scale(.97)}\n.ig .knob{width:28px;height:28px;border-radius:50%;background:var(--knob-bg);color:var(--knob-fg);display:grid;place-items:center;flex:none}\n.ig .knob svg{width:15px;height:15px;transition:transform 200ms var(--ease-out)}\n.ig .btn:hover .knob svg{transform:rotate(-45deg)}\n.ig .btn.sm{min-height:40px;padding:6px 6px 6px 18px;font-size:14.5px;gap:10px;box-shadow:none}\n.ig .btn.sm .knob{width:28px;height:28px}\n.ig .btn-ghost{display:inline-flex;align-items:center;min-height:50px;padding:0 24px;border-radius:99px;background:var(--mint);color:var(--ink);font:700 15.5px\/1 var(--f-body);text-decoration:none;transition:background-color 200ms ease,transform 160ms var(--ease-out)}\n.ig .btn-ghost:hover{background:var(--mint-2)}\n.ig .btn-ghost:active{transform:scale(.97)}\n.ig .hero-photo{margin:0;min-width:0}\n.ig .hero-photo img{display:block;width:100%;height:auto;aspect-ratio:4\/3;object-fit:cover;border-radius:4px}\n@media (max-width:900px){.ig .hero{grid-template-columns:1fr;gap:32px;padding-block:24px 56px}\n.ig .hero-photo{order:-1}\n.ig .hero-photo img{aspect-ratio:16\/10}\n.ig .brief{font-size:18px}}\n.ig .bar{position:sticky;top:var(--hdr);z-index:40;background:var(--bg);box-shadow:0 1px 0 var(--hair)}\n.ig .bar-in{display:flex;align-items:center;gap:24px;height:var(--bar)}\n.ig .bar nav{flex:1;min-width:0;overflow-x:auto;scrollbar-width:none;-webkit-mask-image:linear-gradient(90deg,#000 calc(100% - 32px),transparent)}\n.ig .bar nav::-webkit-scrollbar{display:none}\n.ig .bar ul{list-style:none;margin:0;padding:0 32px 0 0;display:flex;gap:4px;width:max-content}\n.ig .bar a{display:flex;align-items:center;height:36px;padding:0 12px;border-radius:999px;text-decoration:none;font:500 15px\/1 var(--f-display);color:var(--muted);white-space:nowrap;transition:color 150ms var(--ease-out),background-color 150ms var(--ease-out)}\n.ig .bar a:hover{color:var(--ink)}\n.ig .bar a.on{color:var(--ink);background:var(--mint)}\n.ig .bar a.btn{color:var(--btn-fg);background:var(--btn-bg);height:auto;padding:6px 6px 6px 18px;font:700 14.5px\/1 var(--f-body)}\n.ig .bar a.btn:hover{background:var(--btn-hover);color:var(--btn-fg)}\n.ig .bar .btn{opacity:0;transform:translateY(4px);pointer-events:none;transition:opacity 200ms var(--ease-out),transform 200ms var(--ease-out),background-color 200ms ease}\n.ig .bar.past .btn{opacity:1;transform:none;pointer-events:auto}\n.ig .bar-prog{position:absolute;left:0;bottom:-1px;height:2px;width:100%;background:var(--teal);transform-origin:0 50%;transform:scaleX(0)}\n@media (max-width:900px){.ig .bar .btn{display:none}\n.ig .bar-in{gap:0}}\n.ig .fab{position:fixed;left:0;right:0;bottom:var(--bm);z-index:45;padding:12px max(16px,env(safe-area-inset-left,0px)) calc(12px + env(safe-area-inset-bottom,0px));\n  transform:translateY(calc(100% + var(--bm)));transition:transform 280ms var(--ease-drawer);pointer-events:none}\n.ig .fab .btn{width:100%;justify-content:space-between;box-shadow:var(--float);pointer-events:auto}\n.ig .fab.show{transform:none}\n@media (min-width:901px){.ig .fab{display:none}}\n.ig .id-grid{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.6fr);gap:56px;align-items:start}\n.ig .spec{margin:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 40px}\n.ig .spec div{padding-block:16px;border-top:1px solid var(--hair);min-width:0}\n.ig .spec dt{font-size:14px;color:var(--muted)}\n.ig .spec dd{margin:4px 0 0;font:500 18px\/1.4 var(--f-display);color:var(--ink);overflow-wrap:anywhere;display:flex;flex-wrap:wrap;align-items:center;gap:4px 10px}\n.ig .spec dd small{flex-basis:100%;font:400 15px\/1.5 var(--f-body);color:var(--ink-2)}\n.ig .copy{border:0;background:var(--mint);cursor:pointer;height:28px;padding:0 10px;border-radius:999px;font:500 13px\/1 var(--f-display);color:var(--ink-2);display:inline-flex;align-items:center;gap:6px;\n  transition:background-color 150ms var(--ease-out),color 150ms var(--ease-out),transform 160ms var(--ease-out)}\n.ig .copy:hover{background:var(--mint-2);color:var(--ink)}\n.ig .copy:active{transform:scale(.96)}\n.ig .copy svg{width:14px;height:14px}\n.ig .copy.done{background:var(--teal);color:var(--on-teal)}\n.ig .id-grid>div:first-child{position:sticky;top:calc(var(--hdr) + var(--bar) + 32px)}\n@media (max-width:900px){.ig .id-grid{grid-template-columns:1fr;gap:24px}\n.ig .id-grid>div:first-child{position:static}}\n@media (max-width:560px){.ig .spec{grid-template-columns:1fr}}\n.ig .research{background:var(--paper)}\n.ig .r-head{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px 56px;align-items:end}\n.ig .r-tools{margin-top:40px;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px 32px}\n.ig .legend{display:flex;flex-wrap:wrap;gap:8px 20px;font-size:14px;color:var(--ink-2)}\n.ig .domain{margin-top:64px;display:grid;grid-template-columns:minmax(0,220px) minmax(0,1fr);gap:40px}\n.ig .domain[hidden]{display:none}\n.ig .domain h3{font-size:24px;line-height:1.2;letter-spacing:-.01em;position:sticky;top:calc(var(--hdr) + var(--bar) + 24px);align-self:start}\n.ig .domain h3 span{display:block;margin-top:6px;font:400 15px\/1.5 var(--f-body);color:var(--muted);letter-spacing:0}\n.ig .finds{display:grid;gap:12px}\n.ig .find{background:var(--mint);border-radius:12px;padding:24px 28px;display:grid;gap:10px}\n.ig .find-top{display:flex;justify-content:space-between;align-items:flex-start;gap:16px 24px}\n.ig .find h4{font-size:19px;line-height:1.35}\n.ig .meta{display:flex;flex-wrap:wrap;gap:6px}\n.ig .meta span{background:var(--paper);border-radius:999px;padding:5px 10px;font:500 13px\/1.2 var(--f-display);color:var(--ink-2)}\n.ig .find p{color:var(--ink-2);font-size:16px;max-width:64ch}\n.ig .lvl{display:inline-flex;align-items:center;gap:8px;font:500 14px\/1.2 var(--f-display);color:var(--ink);white-space:nowrap;flex:none}\n.ig .dot{width:10px;height:10px;border-radius:50%;flex:none}\n.ig .dot.c{background:var(--teal)}\n.ig .dot.r{background:linear-gradient(90deg,var(--teal) 50%,transparent 50%);box-shadow:inset 0 0 0 2px var(--teal)}\n.ig .dot.v{box-shadow:inset 0 0 0 2px var(--teal)}\n.ig .frame{margin-top:56px;max-width:72ch;font-size:15px;color:var(--muted)}\n@media (max-width:900px){.ig .r-head{grid-template-columns:1fr}\n.ig .domain{grid-template-columns:1fr;gap:16px;margin-top:48px}\n.ig .domain h3{position:static}}\n@media (max-width:560px){.ig .find{padding:20px}\n.ig .find-top{flex-direction:column}\n.ig .r-tools .seg{width:100%;overflow-x:auto;flex-wrap:nowrap;scrollbar-width:none}\n.ig .r-tools .seg button{flex:none}}\n.ig .dose{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.5fr);gap:56px;align-items:center}\n.ig .scale{position:relative;padding-top:104px;padding-bottom:48px}\n.ig .track{position:relative;height:12px;border-radius:6px;background:var(--mint-2)}\n.ig .band{position:absolute;inset:0 auto 0 20%;width:30%;border-radius:6px;background:var(--teal)}\n.ig .ticks{position:absolute;left:0;right:0;top:28px}\n.ig .tick{position:absolute;transform:translateX(-50%);font:500 13px\/1 var(--f-display);color:var(--muted);white-space:nowrap}\n.ig .tick:first-child{transform:none}\n.ig .tick:last-child{transform:translateX(-100%)}\n.ig .pin{position:absolute;bottom:calc(100% + 12px);transform:translateX(-50%);width:200px;text-align:center}\n.ig .pin strong{display:block;font:600 28px\/1 var(--f-display);color:var(--teal-strong)}\n.ig .pin span{display:block;margin-top:6px;font-size:14px;line-height:1.4;color:var(--ink-2)}\n.ig .pin::after{content:\"\";display:block;width:2px;height:16px;background:var(--teal);margin:8px auto 0}\n@media (max-width:900px){.ig .dose{grid-template-columns:1fr;gap:24px}}\n@media (max-width:560px){.ig .scale{padding-top:0}\n.ig .pin{position:static;transform:none;width:auto;text-align:left;display:flex;gap:12px;align-items:baseline;margin-bottom:12px}\n.ig .pin::after{display:none}\n.ig .pin strong{font-size:22px;min-width:48px}\n.ig .pins-m{margin-bottom:20px}}\n.ig .products{background:var(--mint)}\n.ig .p-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:end;gap:24px}\n.ig .p-tabs{display:none}\n.ig .p-cols{margin-top:40px;display:grid;grid-template-columns:repeat(var(--pc,3),minmax(0,1fr));gap:24px}\n.ig .p-col{background:var(--paper);border-radius:12px;padding:28px;display:flex;flex-direction:column}\n.ig .p-col h3{font-size:22px;letter-spacing:-.01em;display:flex;align-items:baseline;gap:12px}\n.ig .p-col h3 .count{font-size:40px;line-height:1;color:var(--teal-strong);letter-spacing:-.03em}\n.ig .p-col p{margin-top:10px;font-size:15px;color:var(--ink-2)}\n.ig .p-col ul{list-style:none;margin:20px 0 0;padding:0}\n.ig .p-col li a{display:grid;grid-template-columns:minmax(0,1fr) auto 16px;align-items:center;gap:12px;min-height:44px;border-top:1px solid var(--hair);text-decoration:none;font-size:16px;transition:color 150ms var(--ease-out)}\n.ig .p-col li a .n{color:var(--muted);font-variant-numeric:tabular-nums}\n.ig .p-col li a svg{width:16px;height:16px;color:var(--muted);transform:translateX(-4px);opacity:0;transition:transform 150ms var(--ease-out),opacity 150ms var(--ease-out)}\n.ig .p-col li a:hover{color:var(--teal-strong)}\n.ig .p-col li a:hover svg{opacity:1;transform:none;color:var(--teal-strong)}\n.ig .feat{margin-top:auto;padding-top:20px}\n.ig .feat a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;border-radius:10px;background:var(--mint);text-decoration:none;font:500 15px\/1.3 var(--f-display);transition:background-color 150ms var(--ease-out)}\n.ig .feat a+a{margin-top:6px}\n.ig .feat a:hover{background:var(--mint-2)}\n.ig .feat small{display:block;font:400 13px\/1.3 var(--f-body);color:var(--muted)}\n.ig .feat svg{width:16px;height:16px;flex:none;color:var(--teal-strong)}\n.ig .pairs{margin-top:40px;display:flex;flex-wrap:wrap;align-items:baseline;gap:10px}\n.ig .pairs p{color:var(--ink-2);margin-right:6px}\n.ig a.chip{text-decoration:none;transition:background-color 150ms var(--ease-out)}\n.ig a.chip:hover{background:var(--mint-2)}\n.ig #plus a.chip{background:var(--mint)}\n.ig #plus a.chip:hover{background:var(--mint-2)}\n.ig .chip{display:inline-flex;gap:6px;align-items:baseline;padding:8px 14px;border-radius:999px;background:var(--paper);font:500 15px\/1 var(--f-display)}\n.ig .chip span{color:var(--muted);font-variant-numeric:tabular-nums}\n@media (max-width:900px){.ig .p-tabs{display:inline-flex;width:100%}\n.ig .p-tabs button{flex:1;justify-content:center}\n.ig .p-cols{grid-template-columns:1fr;margin-top:20px}\n.ig .p-col:not(.on){display:none}\n.ig .p-col h3 .count{display:none}}\n.ig .c-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:end;gap:24px}\n.ig .c-pick{display:none}\n.ig .tbl-wrap{margin-top:40px}\n.ig table.cmp{width:100%;border-collapse:collapse;font-size:16px;table-layout:fixed}\n.ig .cmp th,.ig .cmp td{text-align:left;vertical-align:top;padding:16px 20px 16px 0;border-top:1px solid var(--hair);overflow-wrap:anywhere}\n.ig .cmp thead th{font:600 17px\/1.3 var(--f-display);border-top:0;padding-bottom:12px}\n.ig .cmp thead th:nth-child(2){color:var(--teal-strong)}\n.ig .cmp tbody th{font:500 15px\/1.4 var(--f-display);color:var(--muted);width:16%}\n.ig .cmp td{color:var(--ink-2)}\n.ig .cmp td:nth-child(2),.ig .cmp thead th:nth-child(2){color:var(--ink);padding-left:16px}\n.ig .cmp thead th:nth-child(2){color:var(--teal-strong)}\n.ig .cmp col.me{background:var(--mint)}\n@media (max-width:760px){.ig .c-pick{display:inline-flex;width:100%;margin-top:24px}\n.ig .c-pick button{flex:1;justify-content:center;padding:0 8px}\n.ig .tbl-wrap{margin-top:16px}\n.ig table.cmp{table-layout:auto}\n.ig .cmp th,.ig .cmp td{padding:14px 12px 14px 0;font-size:15px;overflow-wrap:normal}\n.ig .cmp td:nth-child(2),.ig .cmp thead th:nth-child(2){padding-left:12px}\n.ig .cmp tbody th{width:28%}\n.ig .cmp[data-c=\"3\"] :is(th,.ig td):nth-child(4),.ig .cmp[data-c=\"3\"] :is(th,.ig td):nth-child(5),.ig .cmp[data-c=\"4\"] :is(th,.ig td):nth-child(3),.ig .cmp[data-c=\"4\"] :is(th,.ig td):nth-child(5),.ig .cmp[data-c=\"5\"] :is(th,.ig td):nth-child(3),.ig .cmp[data-c=\"5\"] :is(th,.ig td):nth-child(4){display:none}}\n.ig .faq-grid{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.6fr);gap:56px}\n.ig .faq details{border-top:1px solid var(--hair)}\n.ig .faq details:last-child{border-bottom:1px solid var(--hair)}\n.ig .faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:24px;padding-block:20px;font:600 19px\/1.35 var(--f-display);transition:color 150ms var(--ease-out)}\n.ig .faq summary:hover{color:var(--teal-strong)}\n.ig .faq summary::-webkit-details-marker{display:none}\n.ig .faq summary svg{flex:none;width:20px;height:20px;margin-top:3px;color:var(--teal);transition:transform 200ms var(--ease-out)}\n.ig .faq details[open] summary svg{transform:rotate(45deg)}\n.ig .faq details::details-content{block-size:0;overflow:hidden;transition:block-size 240ms var(--ease-out),content-visibility 240ms allow-discrete}\n.ig .faq details[open]::details-content{block-size:auto}\n.ig .faq .a{padding-bottom:24px;color:var(--ink-2);max-width:64ch}\n@media (max-width:900px){.ig .faq-grid{grid-template-columns:1fr;gap:24px}}\n.ig .more-grid{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.6fr);gap:56px}\n.ig .more-list{list-style:none;margin:0;padding:0}\n.ig .more-list a{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:16px;padding-block:18px;border-top:1px solid var(--hair);text-decoration:none;transition:color 150ms var(--ease-out)}\n.ig .more-list li:last-child a{border-bottom:1px solid var(--hair)}\n.ig .more-list strong{display:block;font:600 18px\/1.35 var(--f-display);color:var(--ink);transition:color 150ms var(--ease-out)}\n.ig .more-list small{display:block;margin-top:4px;font-size:14px;color:var(--muted)}\n.ig .more-list svg{width:18px;height:18px;color:var(--muted);transition:transform 150ms var(--ease-out),color 150ms var(--ease-out)}\n.ig .more-list a:hover strong{color:var(--teal-strong)}\n.ig .more-list a:hover svg{transform:translateX(3px);color:var(--teal-strong)}\n.ig .hubs{margin-top:24px;display:flex;flex-wrap:wrap;gap:10px}\n.ig .c-link{color:inherit;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;text-decoration-color:var(--deep-muted)}\n@media (max-width:900px){.ig .more-grid{grid-template-columns:1fr;gap:24px}}\n.ig .sources{background:var(--paper)}\n.ig .src{margin:40px 0 0;padding:0;list-style:none;counter-reset:s;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 48px}\n.ig .src li{counter-increment:s;display:grid;grid-template-columns:32px minmax(0,1fr);font-size:15px;line-height:1.5;color:var(--ink-2);scroll-margin-top:calc(var(--hdr) + var(--bar) + 24px);border-radius:8px;transition:background-color 400ms var(--ease-out),box-shadow 400ms var(--ease-out)}\n.ig .src li::before{content:counter(s);font:600 15px\/1.5 var(--f-display);color:var(--teal-strong)}\n.ig .src li:target,.ig .src li.flash{background:var(--mint);box-shadow:0 0 0 8px var(--mint)}\n.ig .src em{font-style:normal;color:var(--ink)}\n.ig .src a{overflow-wrap:anywhere}\n@media (max-width:760px){.ig .src{grid-template-columns:1fr}}\n.ig .consult{background:var(--deep);color:var(--deep-ink)}\n.ig .c-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:64px;align-items:start}\n.ig .consult h2{color:var(--deep-ink);font-size:clamp(32px,4vw,48px);line-height:1.05;letter-spacing:-.025em}\n.ig .consult .lede{color:var(--deep-muted)}\n.ig .c-points{list-style:none;margin:32px 0 0;padding:0;display:grid;gap:14px}\n.ig .c-points li{display:flex;gap:12px;align-items:flex-start;color:var(--deep-ink)}\n.ig .c-points svg{width:20px;height:20px;flex:none;color:var(--deep-muted);margin-top:2px}\n.ig form.lead{background:var(--deep-field);border-radius:16px;padding:32px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}\n.ig .f{display:grid;gap:6px;min-width:0}\n.ig .f.full{grid-column:1\/-1}\n.ig .f label{font:500 14px\/1.3 var(--f-display);color:var(--deep-muted)}\n.ig .f label b{font-weight:500;color:var(--deep-ink)}\n.ig .f input,.ig .f select,.ig .f textarea{width:100%;min-height:48px;font:400 16px\/1.4 var(--f-body);color:var(--deep-ink);background:var(--deep);border:1px solid rgba(233,244,241,.14);border-radius:8px;padding:12px 14px;transition:border-color 150ms var(--ease-out)}\n.ig .f textarea{min-height:112px;resize:vertical}\n.ig .f input:focus,.ig .f select:focus,.ig .f textarea:focus{outline:none;border-color:var(--deep-muted)}\n.ig .f .err{display:none;font-size:13px;color:#ffb4a8}\n.ig .f.bad input{border-color:#ffb4a8}\n.ig .f.bad .err{display:block}\n.ig form.lead .btn,.ig form.lead .btn{grid-column:1\/-1;justify-self:start;background:#e9f4f1;color:#0f3a35;box-shadow:none}\n.ig form.lead .btn:hover{background:#ffffff}\n.ig form.lead .btn .knob{background:#0f3a35;color:#ffffff}\n@media (max-width:560px){.ig form.lead .btn{justify-self:stretch;justify-content:space-between}}\n.ig .f-note{grid-column:1\/-1;font-size:13px;color:var(--deep-muted)}\n.ig .f-ok{grid-column:1\/-1;display:flex;gap:12px;align-items:flex-start;padding:16px;border-radius:10px;background:var(--deep);font:500 15px\/1.45 var(--f-display);color:var(--deep-ink)}\n.ig .f-ok[hidden]{display:none}\n.ig .f-ok svg{width:20px;height:20px;flex:none;color:var(--deep-muted)}\n@media (max-width:900px){.ig .c-grid{grid-template-columns:1fr;gap:32px}}\n@media (max-width:560px){.ig form.lead{grid-template-columns:1fr;padding:20px}}\n@media (prefers-reduced-motion:reduce){.ig *,.ig *::details-content,.ig .pop,.ig .scrim,.ig .fab{transition:none!important}}\n.ig .hero h1.h1-long{font-size:clamp(38px,4.6vw,60px);line-height:1.02}\n.ig .pins-list{display:none;list-style:none;margin:0 0 20px;padding:0;order:-1}\n.ig .pins-list li{display:flex;gap:12px;align-items:baseline;margin-bottom:10px;font-size:14px;line-height:1.4;color:var(--ink-2)}\n.ig .pins-list strong{font:600 22px\/1 var(--f-display);color:var(--teal-strong);min-width:72px}\n.ig .scale.dense{display:flex;flex-direction:column;padding-top:0}\n.ig .scale.dense .pins-list{display:block}\n.ig .scale.dense .track .pin{display:none}\n@media (max-width:560px){.ig .scale{display:flex;flex-direction:column;padding-top:0}.ig .pins-list{display:block}.ig .track .pin{display:none}}\n<\/style>\n<div class=\"ig\" data-ing=\"keratine\" lang=\"en\" data-copy=\"Copy\" data-copied=\"Copied\">\n<nav class=\"crumbs wrap\" aria-label=\"Breadcrumb\"><ol>\n  <li><a href=\"https:\/\/carmelcosmeticslabs.com\/en\/\">Home<\/a><\/li><li><a href=\"https:\/\/carmelcosmeticslabs.com\/en\/glossary-cosmetic-ingredients\/\">Ingredient glossary<\/a><\/li><li aria-current=\"page\">Hydrolyzed keratin<\/li><\/ol><\/nav>\n<header class=\"wrap hero\" id=\"top\">\n  <div class=\"hero-copy\">\n    <h1>Hydrolyzed keratin<\/h1>\n    <p class=\"brief\">Hydrolyzed keratin is a material made mostly of partially hydrolyzed keratin, used as a hair conditioner and film former<a class=\"ref\" href=\"#src-1\">1<\/a>. Depending on the size of its fragments, it penetrates the hair cortex or stays on the surface<a class=\"ref\" href=\"#src-3\">3<\/a>. The CIR panel judges it safe in current uses<a class=\"ref\" href=\"#src-2\">2<\/a>. \"Keratin\" smoothing products, on the other hand, have contained formaldehyde<a class=\"ref\" href=\"#src-7\">7<\/a>, which is banned in cosmetics in the EU<a class=\"ref\" href=\"#src-9\">9<\/a>.<\/p>\n    <div class=\"byline\"><span class=\"avatar\" aria-hidden=\"true\">ME<\/span>\n      <span><strong>Mohamed El Hjouji<\/strong>Founder and CEO \u00b7 Updated <time datetime=\"2026-11-03\">November 3, 2026<\/time> \u00b7 Reading time 8 min<\/span><\/div>\n    <div class=\"actions\">\n      <a class=\"btn\" href=\"#consultation\">Create a keratin product <span class=\"knob\" aria-hidden=\"true\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M5 12h14M13 6l6 6-6 6\"\/><\/svg><\/span><\/a>\n      <a class=\"btn-ghost\" href=\"#recherche\">Read the studies<\/a>\n    <\/div>\n  <\/div>\n  <figure class=\"hero-photo\"><img fetchpriority=\"high\" src=\"https:\/\/carmelcosmeticslabs.com\/wp-content\/uploads\/2026\/11\/keratine-ingredient-cosmetique-carmel.webp\" srcset=\"https:\/\/carmelcosmeticslabs.com\/wp-content\/uploads\/2026\/11\/keratine-ingredient-cosmetique-carmel-300x224.webp 300w, https:\/\/carmelcosmeticslabs.com\/wp-content\/uploads\/2026\/11\/keratine-ingredient-cosmetique-carmel-441x329.webp 441w, https:\/\/carmelcosmeticslabs.com\/wp-content\/uploads\/2026\/11\/keratine-ingredient-cosmetique-carmel-768x574.webp 768w, https:\/\/carmelcosmeticslabs.com\/wp-content\/uploads\/2026\/11\/keratine-ingredient-cosmetique-carmel-990x740.webp 990w, https:\/\/carmelcosmeticslabs.com\/wp-content\/uploads\/2026\/11\/keratine-ingredient-cosmetique-carmel-1024x765.webp 1024w, https:\/\/carmelcosmeticslabs.com\/wp-content\/uploads\/2026\/11\/keratine-ingredient-cosmetique-carmel.webp 1400w, https:\/\/carmelcosmeticslabs.com\/wp-content\/uploads\/2026\/11\/keratine-ingredient-cosmetique-carmel.webp 1400w\" sizes=\"(max-width:900px) 92vw, 46vw\" width=\"1400\" height=\"1046\" alt=\"Fine hydrolyzed keratin powder in macro view on a sage green ceramic surface, raking light\" fetchpriority=\"high\" decoding=\"async\" title=\"| Carmel Cosmetics Labs\"><\/figure>\n<\/header>\n<div class=\"bar\" id=\"bar\"><div class=\"wrap bar-in\">\n  <nav aria-label=\"On this page\"><ul><li><a href=\"#identite\">Identity<\/a><\/li><li><a href=\"#recherche\">Research<\/a><\/li><li><a href=\"#produits\">Products<\/a><\/li><li><a href=\"#faq\">Questions<\/a><\/li><li><a href=\"#plus\">Reading<\/a><\/li><li><a href=\"#sources\">Sources<\/a><\/li><\/ul><\/nav>\n  <a class=\"btn sm\" href=\"#consultation\" tabindex=\"-1\">Create my product <span class=\"knob\" aria-hidden=\"true\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M5 12h14M13 6l6 6-6 6\"\/><\/svg><\/span><\/a><\/div>\n  <span class=\"bar-prog\" id=\"prog\" aria-hidden=\"true\"><\/span><\/div>\n<section class=\"sec\" id=\"identite\" aria-labelledby=\"h-id\"><div class=\"wrap id-grid\">\n  <div><h2 class=\"h2\" id=\"h-id\">Hydrolyzed keratin at a glance<\/h2>\n  <p class=\"lede\">Entry from our <a class=\"txt-link\" href=\"https:\/\/carmelcosmeticslabs.com\/en\/glossary-cosmetic-ingredients\/\">cosmetic ingredient glossary<\/a>. Regulatory data from the European Commission's CosIng database<a class=\"ref\" href=\"#src-1\">1<\/a>, safety according to the CIR expert panel<a class=\"ref\" href=\"#src-2\">2<\/a>. Copy the identifiers in one click for your files.<\/p><\/div>\n  <dl class=\"spec\"><div><dt>INCI name<\/dt><dd><span class=\"\">HYDROLYZED KERATIN<\/span><button class=\"copy\" type=\"button\" data-copy=\"HYDROLYZED KERATIN\" aria-label=\"Copy: INCI name\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.75\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><rect x=\"9\" y=\"9\" width=\"11\" height=\"11\" rx=\"2\"\/><path d=\"M5 15V5a2 2 0 0 1 2-2h8\"\/><\/svg>Copy<\/button><\/dd><\/div><div><dt>Other names<\/dt><dd>Keratin hydrolysate<small>\"Keratins, hydrolyzates\" in CosIng<a class=\"ref\" href=\"#src-1\">1<\/a><\/small><\/dd><\/div><div><dt>CAS number<\/dt><dd><span class=\"num\">69430-36-0<\/span><button class=\"copy\" type=\"button\" data-copy=\"69430-36-0\" aria-label=\"Copy: CAS number\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.75\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><rect x=\"9\" y=\"9\" width=\"11\" height=\"11\" rx=\"2\"\/><path d=\"M5 15V5a2 2 0 0 1 2-2h8\"\/><\/svg>Copy<\/button><\/dd><\/div><div><dt>EC number<\/dt><dd><span class=\"num\">274-001-1<\/span><button class=\"copy\" type=\"button\" data-copy=\"274-001-1\" aria-label=\"Copy: EC number\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.75\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><rect x=\"9\" y=\"9\" width=\"11\" height=\"11\" rx=\"2\"\/><path d=\"M5 15V5a2 2 0 0 1 2-2h8\"\/><\/svg>Copy<\/button><\/dd><\/div><div><dt>Nature<\/dt><dd>Partially hydrolyzed keratin<small>Biological material made mostly of keratin hydrolyzed into fragments<a class=\"ref\" href=\"#src-1\">1<\/a><\/small><\/dd><\/div><div><dt>Origin<\/dt><dd>Animal<small>Wool in the studies cited<a class=\"ref\" href=\"#src-3\">3<\/a><a class=\"ref\" href=\"#src-5\">5<\/a>; to be specified in the specification sheet<\/small><\/dd><\/div><div><dt>Fragment size<\/dt><dd>Varies by process<small>Studied: 221 Da, about 2,577 Da and about 75,440 Da<a class=\"ref\" href=\"#src-3\">3<\/a>, or under 1,000 Da<a class=\"ref\" href=\"#src-5\">5<\/a><\/small><\/dd><\/div><div><dt>CosIng functions<\/dt><dd>Hair conditioning, film forming, humectant, antistatic<small>Also skin conditioning<a class=\"ref\" href=\"#src-1\">1<\/a><\/small><\/dd><\/div><div><dt>EU status<\/dt><dd>No restriction<small>Not listed in the annexes of Regulation (EC) 1223\/2009<a class=\"ref\" href=\"#src-1\">1<\/a>. Formaldehyde, however, is banned: Annex II, entry 1577<a class=\"ref\" href=\"#src-9\">9<\/a><a class=\"ref\" href=\"#src-10\">10<\/a><\/small><\/dd><\/div><div><dt>Glyoxylic acid<\/dt><dd>Not in the annexes to date<small>CosIng function \"hair waving or straightening\"<a class=\"ref\" href=\"#src-13\">13<\/a>. SCCS opinion requested on May 4, 2026<a class=\"ref\" href=\"#src-14\">14<\/a><\/small><\/dd><\/div><div><dt>Allergen to declare<\/dt><dd>No<\/dd><\/div><div><dt>Safety<\/dt><dd>Judged safe in cosmetics<small>The CIR panel concludes that the 8 keratin-derived ingredients assessed are safe in current uses<a class=\"ref\" href=\"#src-2\">2<\/a><\/small><\/dd><\/div><\/dl><\/div><\/section>\n<section class=\"sec research\" id=\"recherche\" aria-labelledby=\"h-r\"><div class=\"wrap\">\n  <div class=\"r-head\"><div><h2 class=\"h2\" id=\"h-r\">What the research says<\/h2>\n  <p class=\"lede\">Each result shows the protocol and the level of evidence. The higher the level, the better the result carries over to a finished formula.<\/p><\/div><\/div>\n  <div class=\"r-tools\"><div class=\"seg\" role=\"group\" aria-label=\"Filter by area\" id=\"rfilter\"><button type=\"button\" aria-pressed=\"true\" data-d=\"all\">All <span>9<\/span><\/button><button type=\"button\" aria-pressed=\"false\" data-d=\"cheveux\">Hair <span>2<\/span><\/button><button type=\"button\" aria-pressed=\"false\" data-d=\"peau\">Skin <span>1<\/span><\/button><button type=\"button\" aria-pressed=\"false\" data-d=\"lissage\">Smoothing <span>5<\/span><\/button><button type=\"button\" aria-pressed=\"false\" data-d=\"derm\">Safety <span>1<\/span><\/button><\/div><div class=\"legend\" aria-label=\"Levels of evidence\"><span class=\"lvl\"><i class=\"dot c\"><\/i>Clinical trial<\/span><span class=\"lvl\"><i class=\"dot r\"><\/i>Review or consensus<\/span><span class=\"lvl\"><i class=\"dot v\"><\/i>Laboratory<\/span><\/div><\/div>\n  <div class=\"domain\" data-d=\"cheveux\"><h3>Hair<span>Haircare<\/span><\/h3><div class=\"finds\"><article class=\"find\"><div class=\"find-top\"><h4>Fragment size decides penetration<\/h4><span class=\"lvl\"><i class=\"dot v\"><\/i>Laboratory<\/span><\/div><div class=\"meta\"><span>Wool keratin at 221, 2,577 and 75,440 Da<\/span><span>Relaxed tightly curled hair<\/span><span>Isolated fibers, tensile tests<\/span><\/div><p>Small and medium fragments penetrate deep into the cortex; the largest mostly deposit on the surface. Medium and high molecular weight peptides increase Young's modulus (fiber stiffness) and reduce breakage at 20% and 80% relative humidity. Laboratory study, co-author from a manufacturer<a class=\"ref\" href=\"#src-3\">3<\/a>.<\/p><\/article><article class=\"find\"><div class=\"find-top\"><h4>Protein-based cosmetics that protect the fiber<\/h4><span class=\"lvl\"><i class=\"dot r\"><\/i>Review<\/span><\/div><div class=\"meta\"><span>2022 review<\/span><\/div><p>The authors report positive effects of protein-based cosmetics on hair protection and on properties such as strength, shape and volume. They highlight the potential of keratin particles<a class=\"ref\" href=\"#src-4\">4<\/a>.<\/p><\/article><\/div><\/div><div class=\"domain\" data-d=\"peau\"><h3>Skin<span>Skincare<\/span><\/h3><div class=\"finds\"><article class=\"find\"><div class=\"find-top\"><h4>Wool keratin peptide: hydration and elasticity<\/h4><span class=\"lvl\"><i class=\"dot c\"><\/i>Clinical trial<\/span><\/div><div class=\"meta\"><span>Peptide under 1,000 Da<\/span><span>Long-term in vivo studies<\/span><span>Aqueous solution or with wool lipids<\/span><\/div><p>Treated areas show higher hydration and elasticity, a stronger skin barrier and better water retention. The combination with wool lipids gives the best results. The abstract does not give the number of participants<a class=\"ref\" href=\"#src-5\">5<\/a>.<\/p><\/article><\/div><\/div><div class=\"domain\" data-d=\"lissage\"><h3>Keratin smoothing products: what the studies say<span>Safety<\/span><\/h3><div class=\"finds\"><article class=\"find\"><div class=\"find-top\"><h4>&quot;Keratin&quot; smoothing products containing formaldehyde or its derivatives<\/h4><span class=\"lvl\"><i class=\"dot r\"><\/i>Review<\/span><\/div><div class=\"meta\"><span>2013 review<\/span><\/div><p>The authors note that many salon products contain formaldehyde or its derivatives, yet are marketed as safe<a class=\"ref\" href=\"#src-6\">6<\/a>.<\/p><\/article><article class=\"find\"><div class=\"find-top\"><h4>6 products out of 7 above 0.96% formaldehyde<\/h4><span class=\"lvl\"><i class=\"dot v\"><\/i>Product analysis<\/span><\/div><div class=\"meta\"><span>7 brands sold in South Africa in 2012<\/span><span>Liquid chromatography<\/span><\/div><p>Six brands contain 0.96 to 1.4% formaldehyde, 5 times the 0.2% limit retained by the CIR. Five of them were labeled \"formaldehyde free\"<a class=\"ref\" href=\"#src-7\">7<\/a>.<\/p><\/article><article class=\"find\"><div class=\"find-top\"><h4>Exposure that can exceed salon limits<\/h4><span class=\"lvl\"><i class=\"dot v\"><\/i>Salon simulation<\/span><\/div><div class=\"meta\"><span>4 products on mannequin hair<\/span><span>88 air samples<\/span><\/div><p>Formaldehyde content of the products: 11.5%, 8.3%, 3% and 0%. Mean air concentrations of 0.08 to 3.47 ppm during drying. Even products labeled \"formaldehyde free\" can produce concentrations equal to or above occupational exposure limits<a class=\"ref\" href=\"#src-8\">8<\/a>.<\/p><\/article><article class=\"find\"><div class=\"find-top\"><h4>Glyoxylic acid: crystalline nephropathy in mice<\/h4><span class=\"lvl\"><i class=\"dot v\"><\/i>Mice and clinical case<\/span><\/div><div class=\"meta\"><span>Cream with 10% glyoxylic acid<\/span><span>Smoothing product tested<\/span><span>Skin application<\/span><\/div><p>Glyoxylic acid, absorbed through the skin and converted to oxalate, caused calcium oxalate crystal nephropathy in mice. The authors recommend stopping cosmetic products that contain it<a class=\"ref\" href=\"#src-11\">11<\/a>.<\/p><\/article><article class=\"find\"><div class=\"find-top\"><h4>34 people with acute kidney injury after a smoothing product<\/h4><span class=\"lvl\"><i class=\"dot r\"><\/i>Systematic review<\/span><\/div><div class=\"meta\"><span>8 publications<\/span><span>36 episodes<\/span><\/div><p>For 20 episodes, the product was labeled \"formaldehyde free\"; for 16, its composition was unknown. Everyone recovered. The authors call for caution with smoothing products<a class=\"ref\" href=\"#src-12\">12<\/a>.<\/p><\/article><\/div><\/div><div class=\"domain\" data-d=\"derm\"><h3>Ingredient safety<span>Dermatology<\/span><\/h3><div class=\"finds\"><article class=\"find\"><div class=\"find-top\"><h4>8 keratin derivatives judged safe<\/h4><span class=\"lvl\"><i class=\"dot r\"><\/i>Expert opinion<\/span><\/div><div class=\"meta\"><span>CIR panel, 2021 report<\/span><\/div><p>The panel concludes that the 8 keratin-derived ingredients assessed are safe in the uses and concentrations described. They mostly serve as skin and hair conditioning agents<a class=\"ref\" href=\"#src-2\">2<\/a>.<\/p><\/article><\/div><\/div>\n  <p class=\"frame\">This page summarizes published literature on a cosmetic ingredient. It does not describe the effect of a finished product, which depends on its formula, and it is not medical advice. The level of evidence for hydrolyzed keratin is modest: laboratory tests on fibers and one skin study, few clinical trials. The studies on smoothing products concern the safety of those products, not keratin itself. Studies affiliated with a manufacturer are flagged in the sources.<\/p><\/div><\/section>\n\n<section class=\"sec products\" id=\"produits\" aria-labelledby=\"h-p\"><div class=\"wrap\">\n  <div class=\"p-head\"><div><h2 class=\"h2\" id=\"h-p\">Which products use hydrolyzed keratin?<\/h2>\n  <p class=\"lede\">Our <a class=\"txt-link\" href=\"https:\/\/carmelcosmeticslabs.com\/en\/personalized-cosmetics-products-catalog\/\">white label catalog<\/a> includes 8 formulas with keratin: the key active in 6 of them, a supporting ingredient in the others. Every category can be customized (formula, fragrance, packaging).<\/p><\/div>\n  <\/div>\n  <div class=\"p-cols\" style=\"--pc:1\"><div class=\"p-col on\" id=\"pc-cheveux\" role=\"tabpanel\"><h3><span class=\"count num\">8<\/span>Hair<\/h3><p>Signature active in the masks, shampoo, serum and conditioners; also found in the styling wax, the smoothing product and the heat protectant spray.<\/p><ul><li><a href=\"https:\/\/carmelcosmeticslabs.com\/en\/personalized-cosmetics-products-catalog\/white-label-shampoos\/\"><span>Shampoos and conditioners<\/span><span class=\"n\">3<\/span><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.75\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M5 12h14M13 6l6 6-6 6\"\/><\/svg><\/a><\/li><li><a href=\"https:\/\/carmelcosmeticslabs.com\/en\/personalized-cosmetics-products-catalog\/white-label-hair-masks\/\"><span>Hair masks<\/span><span class=\"n\">2<\/span><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.75\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M5 12h14M13 6l6 6-6 6\"\/><\/svg><\/a><\/li><li><a href=\"https:\/\/carmelcosmeticslabs.com\/en\/personalized-cosmetics-products-catalog\/white-label-hair-serums\/\"><span>Hair serums and sprays<\/span><span class=\"n\">2<\/span><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.75\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M5 12h14M13 6l6 6-6 6\"\/><\/svg><\/a><\/li><li><a href=\"https:\/\/carmelcosmeticslabs.com\/en\/personalized-cosmetics-products-catalog\/white-label-styling-creams\/\"><span>Leave-in and styling creams<\/span><span class=\"n\">1<\/span><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.75\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M5 12h14M13 6l6 6-6 6\"\/><\/svg><\/a><\/li><\/ul><div class=feat><a href=\"https:\/\/carmelcosmeticslabs.com\/en\/personalized-cosmetics-products-catalog\/white-label-hair-masks\/keratin-argan-hair-mask\/\"><span>Keratin, Argan and Coconut Mask<small>Key active<\/small><\/span><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.75\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M5 12h14M13 6l6 6-6 6\"\/><\/svg><\/a><a href=\"https:\/\/carmelcosmeticslabs.com\/en\/personalized-cosmetics-products-catalog\/white-label-shampoos\/keratin-shampoo\/\"><span>Sulfate-Free Keratin Shampoo<small>Key active<\/small><\/span><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.75\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M5 12h14M13 6l6 6-6 6\"\/><\/svg><\/a><\/div><\/div><\/div>\n  <div class=\"pairs\"><p>In our formulas, it is most often paired with<\/p><a class=\"chip\" href=\"https:\/\/carmelcosmeticslabs.com\/en\/glossary-cosmetic-ingredients\/argan-oil\/\">Argan oil <span class=\"num\">4<\/span><\/a><a class=\"chip\" href=\"https:\/\/carmelcosmeticslabs.com\/en\/glossary-cosmetic-ingredients\/shea-butter\/\">Shea butter <span class=\"num\">3<\/span><\/a><a class=\"chip\" href=\"https:\/\/carmelcosmeticslabs.com\/en\/glossary-cosmetic-ingredients\/coconut-oil\/\">Coconut oil <span class=\"num\">2<\/span><\/a><a class=\"chip\" href=\"https:\/\/carmelcosmeticslabs.com\/en\/glossary-cosmetic-ingredients\/castor-oil\/\">Castor oil <span class=\"num\">2<\/span><\/a><\/div>\n  <\/div><\/section>\n\n<section class=\"sec\" id=\"faq\" aria-labelledby=\"h-faq\"><div class=\"wrap faq-grid\">\n  <h2 class=\"h2\" id=\"h-faq\">Frequently asked questions about hydrolyzed keratin<\/h2><div class=\"faq\"><details open><summary>What is hydrolyzed keratin?<svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.75\" stroke-linecap=\"round\" aria-hidden=\"true\"><path d=\"M12 5v14M5 12h14\"\/><\/svg><\/summary><div class=\"a\">It is a biological material made mostly of keratin, a fibrous protein, cut into fragments by hydrolysis<a class=\"ref\" href=\"#src-1\">1<\/a>. It appears on labels under the INCI name HYDROLYZED KERATIN and works as a hair conditioner, film former, humectant and antistatic agent<a class=\"ref\" href=\"#src-1\">1<\/a>.<\/div><\/details><details><summary>What does keratin do in hair care?<svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.75\" stroke-linecap=\"round\" aria-hidden=\"true\"><path d=\"M12 5v14M5 12h14\"\/><\/svg><\/summary><div class=\"a\">It depends on the size of the fragments. On relaxed afro-textured hair, fragments of 221 and 2,577 Da penetrate the cortex while those of 75,440 Da stay mostly on the surface; medium and high molecular weight peptides reduce breakage<a class=\"ref\" href=\"#src-3\">3<\/a>. A review concludes that protein-based cosmetics protect the fiber<a class=\"ref\" href=\"#src-4\">4<\/a>.<\/div><\/details><details><summary>Does hydrolyzed keratin smooth hair for good?<svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.75\" stroke-linecap=\"round\" aria-hidden=\"true\"><path d=\"M12 5v14M5 12h14\"\/><\/svg><\/summary><div class=\"a\">The studies cited show no lasting smoothing effect of hydrolyzed keratin: they measure penetration, strength and breakage<a class=\"ref\" href=\"#src-3\">3<\/a><a class=\"ref\" href=\"#src-4\">4<\/a>. \"Brazilian\" smoothing products, which hold a straight shape even on wet hair, have been linked to formaldehyde or its derivatives<a class=\"ref\" href=\"#src-6\">6<\/a><a class=\"ref\" href=\"#src-7\">7<\/a>. The smoothing effect of a product must therefore be justified by its complete formula, not by keratin alone.<\/div><\/details><details><summary>Does a Brazilian keratin smoothing product contain formaldehyde?<svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.75\" stroke-linecap=\"round\" aria-hidden=\"true\"><path d=\"M12 5v14M5 12h14\"\/><\/svg><\/summary><div class=\"a\">It has: out of 7 brands tested, 6 contained 0.96 to 1.4%, including 5 labeled \"formaldehyde free\"<a class=\"ref\" href=\"#src-7\">7<\/a>. In the EU, formaldehyde is banned in cosmetics (Annex II, entry 1577, along with paraformaldehyde and methanediol, entries 1578 and 1579)<a class=\"ref\" href=\"#src-9\">9<\/a><a class=\"ref\" href=\"#src-10\">10<\/a>. Preservatives in Annex V that release it require the statement \"Releases formaldehyde\" above 0.001%<a class=\"ref\" href=\"#src-9\">9<\/a>. The smoothing formula in our catalog is presented as formaldehyde free; the complete INCI list is provided with the quote.<\/div><\/details><details><summary>What about glyoxylic acid, used instead of formaldehyde?<svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.75\" stroke-linecap=\"round\" aria-hidden=\"true\"><path d=\"M12 5v14M5 12h14\"\/><\/svg><\/summary><div class=\"a\">Glyoxylic acid (CAS 298-12-4) has the CosIng function \"hair waving or straightening\"<a class=\"ref\" href=\"#src-13\">13<\/a>. It is not listed in any annex of the regulation, but kidney damage after smoothing products has been reported: crystalline nephropathy in mice<a class=\"ref\" href=\"#src-11\">11<\/a> and 34 people in a 2025 review<a class=\"ref\" href=\"#src-12\">12<\/a>. On May 4, 2026, the Commission asked the SCCS to assess its safety in cosmetic products<a class=\"ref\" href=\"#src-14\">14<\/a>. Until its opinion is published, check the INCI list of any smoothing product.<\/div><\/details><details><summary>Is hydrolyzed keratin of animal origin?<svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.75\" stroke-linecap=\"round\" aria-hidden=\"true\"><path d=\"M12 5v14M5 12h14\"\/><\/svg><\/summary><div class=\"a\">The studies cited use wool keratin<a class=\"ref\" href=\"#src-3\">3<\/a><a class=\"ref\" href=\"#src-5\">5<\/a>. It is a biological material: its origin and hydrolysis process must be specified in the specification sheet, especially for any ethical or plant-based claim.<\/div><\/details><details><summary>Is hydrolyzed keratin safe?<svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.75\" stroke-linecap=\"round\" aria-hidden=\"true\"><path d=\"M12 5v14M5 12h14\"\/><\/svg><\/summary><div class=\"a\">The CIR panel judges the 8 keratin-derived ingredients it assessed to be safe<a class=\"ref\" href=\"#src-2\">2<\/a>. Protein hydrolysates can rarely cause contact urticaria: in a Finnish study, the people who reacted, all atopic, reacted to at least one collagen derivative<a class=\"ref\" href=\"#src-15\">15<\/a>. A tolerance test of the final formula is still advised.<\/div><\/details><details><summary>Can you manufacture a keratin mask for my brand?<svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.75\" stroke-linecap=\"round\" aria-hidden=\"true\"><path d=\"M12 5v14M5 12h14\"\/><\/svg><\/summary><div class=\"a\">Yes. Our <a class=\"txt-link\" href=\"https:\/\/carmelcosmeticslabs.com\/en\/iso-22716-certified-cosmetics-manufacturer\/\">ISO 22716 certified<\/a> lab offers 8 keratin formulas (mask, shampoo, conditioners, serum, styling wax, smoothing product) that you can customize, or a <a class=\"txt-link\" href=\"https:\/\/carmelcosmeticslabs.com\/en\/cosmetic-formulation-lab\/\">custom formula<\/a>. Samples are free.<\/div><\/details><\/div><\/div><\/section>\n<section class=\"sec\" id=\"plus\" aria-labelledby=\"h-more\" style=\"padding-top:0\"><div class=\"wrap more-grid\">\n  <div><h2 class=\"h2\" id=\"h-more\">Further reading<\/h2><div class=\"hubs\"><a class=\"chip\" href=\"https:\/\/carmelcosmeticslabs.com\/en\/glossary-cosmetic-ingredients\/\">Ingredient glossary<\/a><a class=\"chip\" href=\"https:\/\/carmelcosmeticslabs.com\/en\/personalized-cosmetics-products-catalog\/white-label-hair-masks\/\">White label hair masks<\/a><a class=\"chip\" href=\"https:\/\/carmelcosmeticslabs.com\/en\/cosmetic-formulation-lab\/\">Custom cosmetic formulation<\/a><\/div><\/div>\n  <ul class=\"more-list\"><li><a href=\"https:\/\/carmelcosmeticslabs.com\/en\/waterless-beauty-white-label-anhydrous-formulations\/\"><span><strong>Waterless beauty 2026: premium anhydrous formulations<\/strong><small>Hair care bar with keratin, proteins and ceramides<\/small><\/span><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.75\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M5 12h14M13 6l6 6-6 6\"\/><\/svg><\/a><\/li><li><a href=\"https:\/\/carmelcosmeticslabs.com\/en\/july-cosmetics-launch-strategy-gulf-europe\/\"><span><strong>Episode 7: cosmetics strategy for an international launch<\/strong><small>Example of an argan-keratin hair mask launched in Dubai<\/small><\/span><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.75\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M5 12h14M13 6l6 6-6 6\"\/><\/svg><\/a><\/li><\/ul><\/div><\/section>\n<section class=\"sec sources\" id=\"sources\" aria-labelledby=\"h-s\"><div class=\"wrap\">\n  <h2 class=\"h2\" id=\"h-s\">Sources<\/h2><p class=\"lede\">Peer-reviewed studies and official regulatory sources, checked on November 3, 2026.<\/p>\n  <ol class=\"src\"><li id=\"src-1\"><span>European Commission. <em>CosIng, entry HYDROLYZED KERATIN<\/em> (CAS 69430-36-0, EC 274-001-1). <a class=\"txt-link\" href=\"https:\/\/ec.europa.eu\/growth\/tools-databases\/cosing\/details\/34437\" target=\"_blank\" rel=\"noopener\">ec.europa.eu\/growth\/tools-databases\/cosing<\/a><\/span><\/li><li id=\"src-2\"><span>Burnett CL, Bergfeld WF, Belsito DV, et al. <em>Safety assessment of keratin and keratin-derived ingredients as used in cosmetics.<\/em> Int J Toxicol. 2021;40(2_suppl):36S-51S. <a class=\"txt-link\" href=\"https:\/\/doi.org\/10.1177\/10915818211013019\" target=\"_blank\" rel=\"noopener\">doi:10.1177\/10915818211013019<\/a><\/span><\/li><li id=\"src-3\"><span>Malinauskyte E, Shrestha R, Cornwell PA, et al. <em>Penetration of different molecular weight hydrolysed keratins into hair fibres and their effects on the physical properties of textured hair.<\/em> Int J Cosmet Sci. 2021;43(1):26-37. <a class=\"txt-link\" href=\"https:\/\/doi.org\/10.1111\/ics.12663\" target=\"_blank\" rel=\"noopener\">doi:10.1111\/ics.12663<\/a><span class=\"tag\">Croda (co-author)<\/span><\/span><\/li><li id=\"src-4\"><span>Tinoco A, Martins M, Cavaco-Paulo A, Ribeiro A. <em>Biotechnology of functional proteins and peptides for hair cosmetic formulations.<\/em> Trends Biotechnol. 2022;40(5):591-605. <a class=\"txt-link\" href=\"https:\/\/doi.org\/10.1016\/j.tibtech.2021.09.010\" target=\"_blank\" rel=\"noopener\">doi:10.1016\/j.tibtech.2021.09.010<\/a><\/span><\/li><li id=\"src-5\"><span>Barba C, M\u00e9ndez S, Roddick-Lanzilotta A, et al. <em>Cosmetic effectiveness of topically applied hydrolysed keratin peptides and lipids derived from wool.<\/em> Skin Res Technol. 2008;14(2):243-248. <a class=\"txt-link\" href=\"https:\/\/doi.org\/10.1111\/j.1600-0846.2007.00280.x\" target=\"_blank\" rel=\"noopener\">doi:10.1111\/j.1600-0846.2007.00280.x<\/a><\/span><\/li><li id=\"src-6\"><span>Weathersby C, McMichael A. <em>Brazilian keratin hair treatment: a review.<\/em> J Cosmet Dermatol. 2013;12(2):144-148. <a class=\"txt-link\" href=\"https:\/\/doi.org\/10.1111\/jocd.12030\" target=\"_blank\" rel=\"noopener\">doi:10.1111\/jocd.12030<\/a><\/span><\/li><li id=\"src-7\"><span>Maneli MH, Smith P, Khumalo NP. <em>Elevated formaldehyde concentration in \u00ab Brazilian keratin type \u00bb hair-straightening products: a cross-sectional study.<\/em> J Am Acad Dermatol. 2014;70(2):276-280. <a class=\"txt-link\" href=\"https:\/\/doi.org\/10.1016\/j.jaad.2013.10.023\" target=\"_blank\" rel=\"noopener\">doi:10.1016\/j.jaad.2013.10.023<\/a><\/span><\/li><li id=\"src-8\"><span>Pierce JS, Abelmann A, Spicer LJ, et al. <em>Characterization of formaldehyde exposure resulting from the use of four professional hair straightening products.<\/em> J Occup Environ Hyg. 2011;8(11):686-699. <a class=\"txt-link\" href=\"https:\/\/doi.org\/10.1080\/15459624.2011.626259\" target=\"_blank\" rel=\"noopener\">doi:10.1080\/15459624.2011.626259<\/a><\/span><\/li><li id=\"src-9\"><span>European Parliament and Council. <em>Regulation (EC) No 1223\/2009 on cosmetic products<\/em>, consolidated version of 1 May 2025: Annex II, entries 1577 to 1579; Annex V, preamble, point 2. <a class=\"txt-link\" href=\"https:\/\/eur-lex.europa.eu\/eli\/reg\/2009\/1223\/oj\" target=\"_blank\" rel=\"noopener\">eur-lex.europa.eu<\/a><\/span><\/li><li id=\"src-10\"><span>European Commission. <em>CosIng, entry FORMALDEHYDE<\/em> (CAS 50-00-0, EC 200-001-8; Annex II, entry 1577). <a class=\"txt-link\" href=\"https:\/\/ec.europa.eu\/growth\/tools-databases\/cosing\/details\/97916\" target=\"_blank\" rel=\"noopener\">ec.europa.eu\/growth\/tools-databases\/cosing<\/a><\/span><\/li><li id=\"src-11\"><span>Robert T, Tang E, Kervadec J, et al. <em>Hair-straightening cosmetics containing glyoxylic acid induce crystalline nephropathy.<\/em> Kidney Int. 2024;106(6):1117-1123. <a class=\"txt-link\" href=\"https:\/\/doi.org\/10.1016\/j.kint.2024.07.032\" target=\"_blank\" rel=\"noopener\">doi:10.1016\/j.kint.2024.07.032<\/a><\/span><\/li><li id=\"src-12\"><span>Aamir AB, Latif R, Sorath F, et al. <em>Acute kidney injury induced by topical hair straightening products: a systematic review.<\/em> World J Nephrol. 2025;14(4):112796. <a class=\"txt-link\" href=\"https:\/\/doi.org\/10.5527\/wjn.v14.i4.112796\" target=\"_blank\" rel=\"noopener\">doi:10.5527\/wjn.v14.i4.112796<\/a><\/span><\/li><li id=\"src-13\"><span>European Commission. <em>CosIng, entry GLYOXYLIC ACID<\/em> (CAS 298-12-4, EC 206-058-5). <a class=\"txt-link\" href=\"https:\/\/ec.europa.eu\/growth\/tools-databases\/cosing\/details\/34158\" target=\"_blank\" rel=\"noopener\">ec.europa.eu\/growth\/tools-databases\/cosing<\/a><\/span><\/li><li id=\"src-14\"><span>European Commission, DG SANTE. <em>SCCS - Request for a scientific opinion on the safety of glyoxylic acid when used in cosmetic products.<\/em> Published May 4, 2026. <a class=\"txt-link\" href=\"https:\/\/health.ec.europa.eu\/latest-updates\/sccs-request-scientific-opinion-safety-glyoxylic-acid-when-used-cosmetic-products-2026-05-04_en\" target=\"_blank\" rel=\"noopener\">health.ec.europa.eu<\/a><\/span><\/li><li id=\"src-15\"><span>Niinim\u00e4ki A, Niinim\u00e4ki M, M\u00e4kinen-Kiljunen S, Hannuksela M. <em>Contact urticaria from protein hydrolysates in hair conditioners.<\/em> Allergy. 1998;53(11):1078-1082. <a class=\"txt-link\" href=\"https:\/\/doi.org\/10.1111\/j.1398-9995.1998.tb03818.x\" target=\"_blank\" rel=\"noopener\">doi:10.1111\/j.1398-9995.1998.tb03818.x<\/a><\/span><\/li><\/ol><\/div><\/section>\n\n<div class=\"fab\" id=\"fab\"><a class=\"btn\" href=\"#consultation\">Create a keratin product <span class=\"knob\" aria-hidden=\"true\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"1.8\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><path d=\"M5 12h14M13 6l6 6-6 6\"\/><\/svg><\/span><\/a><\/div><div class=\"scrim\" id=\"scrim\"><\/div><div class=\"pop\" id=\"pop\" role=\"dialog\" aria-modal=\"false\" aria-labelledby=\"pop-n\" hidden><div class=\"pop-n\" id=\"pop-n\"><\/div><div class=\"pop-body\" id=\"pop-body\"><\/div><div class=\"pop-foot\"><a class=\"txt-link\" id=\"pop-all\" href=\"#sources\">All sources<\/a><button class=\"pop-x\" type=\"button\" id=\"pop-x\">Close<\/button><\/div><\/div>\n<\/div>\n<script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@graph\": [{\"@type\": \"WebPage\", \"@id\": \"https:\/\/carmelcosmeticslabs.com\/en\/glossary-cosmetic-ingredients\/hydrolyzed-keratin\/#webpage\", \"url\": \"https:\/\/carmelcosmeticslabs.com\/en\/glossary-cosmetic-ingredients\/hydrolyzed-keratin\/\", \"name\": \"Hydrolyzed Keratin: Uses, Studies and Safety\", \"inLanguage\": \"en-US\", \"datePublished\": \"2026-11-03\", \"dateModified\": \"2026-11-03\", \"author\": {\"@type\": \"Person\", \"name\": \"Mohamed El Hjouji\", \"jobTitle\": \"Founder and CEO\", \"worksFor\": {\"@type\": \"Organization\", \"name\": \"Carmel Cosmetics Labs\", \"url\": \"https:\/\/carmelcosmeticslabs.com\/\"}}, \"about\": {\"@type\": \"Thing\", \"name\": \"Hydrolyzed keratin\", \"alternateName\": [\"Hydrolyzed keratin\", \"Keratins, hydrolyzates\", \"Keratin hydrolysate\"], \"identifier\": \"CAS 69430-36-0\"}, \"mainEntity\": {\"@id\": \"https:\/\/carmelcosmeticslabs.com\/en\/glossary-cosmetic-ingredients\/hydrolyzed-keratin\/#term\"}, \"isPartOf\": {\"@type\": \"CollectionPage\", \"name\": \"Cosmetic ingredient glossary\", \"url\": \"https:\/\/carmelcosmeticslabs.com\/en\/glossary-cosmetic-ingredients\/\"}, \"relatedLink\": [\"https:\/\/carmelcosmeticslabs.com\/en\/waterless-beauty-white-label-anhydrous-formulations\/\", \"https:\/\/carmelcosmeticslabs.com\/en\/july-cosmetics-launch-strategy-gulf-europe\/\"], \"citation\": [{\"@type\": \"WebPage\", \"name\": \"CosIng - HYDROLYZED KERATIN\", \"url\": \"https:\/\/ec.europa.eu\/growth\/tools-databases\/cosing\/details\/34437\"}, {\"@type\": \"ScholarlyArticle\", \"name\": \"Safety assessment of keratin and keratin-derived ingredients as used in cosmetics\", \"sameAs\": \"https:\/\/doi.org\/10.1177\/10915818211013019\", \"datePublished\": \"2021\"}, {\"@type\": \"ScholarlyArticle\", \"name\": \"Penetration of different molecular weight hydrolysed keratins into hair fibres and their effects on the physical properties of textured hair\", \"sameAs\": \"https:\/\/doi.org\/10.1111\/ics.12663\", \"datePublished\": \"2021\"}, {\"@type\": \"ScholarlyArticle\", \"name\": \"Biotechnology of functional proteins and peptides for hair cosmetic formulations\", \"sameAs\": \"https:\/\/doi.org\/10.1016\/j.tibtech.2021.09.010\", \"datePublished\": \"2022\"}, {\"@type\": \"ScholarlyArticle\", \"name\": \"Cosmetic effectiveness of topically applied hydrolysed keratin peptides and lipids derived from wool\", \"sameAs\": \"https:\/\/doi.org\/10.1111\/j.1600-0846.2007.00280.x\", \"datePublished\": \"2008\"}, {\"@type\": \"ScholarlyArticle\", \"name\": \"Brazilian keratin hair treatment: a review\", \"sameAs\": \"https:\/\/doi.org\/10.1111\/jocd.12030\", \"datePublished\": \"2013\"}, {\"@type\": \"ScholarlyArticle\", \"name\": \"Elevated formaldehyde concentration in \\\"Brazilian keratin type\\\" hair-straightening products: a cross-sectional study\", \"sameAs\": \"https:\/\/doi.org\/10.1016\/j.jaad.2013.10.023\", \"datePublished\": \"2014\"}, {\"@type\": \"ScholarlyArticle\", \"name\": \"Characterization of formaldehyde exposure resulting from the use of four professional hair straightening products\", \"sameAs\": \"https:\/\/doi.org\/10.1080\/15459624.2011.626259\", \"datePublished\": \"2011\"}, {\"@type\": \"Legislation\", \"name\": \"Regulation (EC) No 1223\/2009, consolidated version of 1 May 2025\", \"url\": \"https:\/\/eur-lex.europa.eu\/eli\/reg\/2009\/1223\/oj\"}, {\"@type\": \"WebPage\", \"name\": \"CosIng - FORMALDEHYDE\", \"url\": \"https:\/\/ec.europa.eu\/growth\/tools-databases\/cosing\/details\/97916\"}, {\"@type\": \"ScholarlyArticle\", \"name\": \"Hair-straightening cosmetics containing glyoxylic acid induce crystalline nephropathy\", \"sameAs\": \"https:\/\/doi.org\/10.1016\/j.kint.2024.07.032\", \"datePublished\": \"2024\"}, {\"@type\": \"ScholarlyArticle\", \"name\": \"Acute kidney injury induced by topical hair straightening products: a systematic review\", \"sameAs\": \"https:\/\/doi.org\/10.5527\/wjn.v14.i4.112796\", \"datePublished\": \"2025\"}, {\"@type\": \"WebPage\", \"name\": \"CosIng - GLYOXYLIC ACID\", \"url\": \"https:\/\/ec.europa.eu\/growth\/tools-databases\/cosing\/details\/34158\"}, {\"@type\": \"WebPage\", \"name\": \"SCCS - Request for a scientific opinion on the safety of glyoxylic acid when used in cosmetic products\", \"url\": \"https:\/\/health.ec.europa.eu\/latest-updates\/sccs-request-scientific-opinion-safety-glyoxylic-acid-when-used-cosmetic-products-2026-05-04_en\", \"datePublished\": \"2026\"}, {\"@type\": \"ScholarlyArticle\", \"name\": \"Contact urticaria from protein hydrolysates in hair conditioners\", \"sameAs\": \"https:\/\/doi.org\/10.1111\/j.1398-9995.1998.tb03818.x\", \"datePublished\": \"1998\"}]}, {\"@type\": \"DefinedTerm\", \"@id\": \"https:\/\/carmelcosmeticslabs.com\/en\/glossary-cosmetic-ingredients\/hydrolyzed-keratin\/#term\", \"name\": \"Hydrolyzed keratin\", \"alternateName\": \"HYDROLYZED KERATIN\", \"description\": \"Biological material made mostly of partially hydrolyzed keratin, used in cosmetics as a hair conditioning agent, film former, humectant and antistatic agent.\", \"inDefinedTermSet\": {\"@type\": \"DefinedTermSet\", \"name\": \"Cosmetic ingredient glossary\", \"url\": \"https:\/\/carmelcosmeticslabs.com\/en\/glossary-cosmetic-ingredients\/\"}}, {\"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is hydrolyzed keratin?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It is a biological material made mostly of keratin, a fibrous protein, cut into fragments by hydrolysis. It appears on labels under the INCI name HYDROLYZED KERATIN and works as a hair conditioner, film former, humectant and antistatic agent.\"}}, {\"@type\": \"Question\", \"name\": \"What does keratin do in hair care?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It depends on the size of the fragments. On relaxed afro-textured hair, fragments of 221 and 2,577 Da penetrate the cortex while those of 75,440 Da stay mostly on the surface; medium and high molecular weight peptides reduce breakage. A review concludes that protein-based cosmetics protect the fiber.\"}}, {\"@type\": \"Question\", \"name\": \"Does hydrolyzed keratin smooth hair for good?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The studies cited show no lasting smoothing effect of hydrolyzed keratin: they measure penetration, strength and breakage. \\\"Brazilian\\\" smoothing products, which hold a straight shape even on wet hair, have been linked to formaldehyde or its derivatives. The smoothing effect of a product must therefore be justified by its complete formula, not by keratin alone.\"}}, {\"@type\": \"Question\", \"name\": \"Does a Brazilian keratin smoothing product contain formaldehyde?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It has: out of 7 brands tested, 6 contained 0.96 to 1.4%, including 5 labeled \\\"formaldehyde free\\\". In the EU, formaldehyde is banned in cosmetics (Annex II, entry 1577, along with paraformaldehyde and methanediol, entries 1578 and 1579). Preservatives in Annex V that release it require the statement \\\"Releases formaldehyde\\\" above 0.001%. The smoothing formula in our catalog is presented as formaldehyde free; the complete INCI list is provided with the quote.\"}}, {\"@type\": \"Question\", \"name\": \"What about glyoxylic acid, used instead of formaldehyde?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Glyoxylic acid (CAS 298-12-4) has the CosIng function \\\"hair waving or straightening\\\". It is not listed in any annex of the regulation, but kidney damage after smoothing products has been reported: crystalline nephropathy in mice and 34 people in a 2025 review. On May 4, 2026, the Commission asked the SCCS to assess its safety in cosmetic products. Until its opinion is published, check the INCI list of any smoothing product.\"}}, {\"@type\": \"Question\", \"name\": \"Is hydrolyzed keratin of animal origin?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The studies cited use wool keratin. It is a biological material: its origin and hydrolysis process must be specified in the specification sheet, especially for any ethical or plant-based claim.\"}}, {\"@type\": \"Question\", \"name\": \"Is hydrolyzed keratin safe?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The CIR panel judges the 8 keratin-derived ingredients it assessed to be safe. Protein hydrolysates can rarely cause contact urticaria: in a Finnish study, the people who reacted, all atopic, reacted to at least one collagen derivative. A tolerance test of the final formula is still advised.\"}}, {\"@type\": \"Question\", \"name\": \"Can you manufacture a keratin mask for my brand?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. Our ISO 22716 certified lab offers 8 keratin formulas (mask, shampoo, conditioners, serum, styling wax, smoothing product) that you can customize, or a custom formula. Samples are free.\"}}]}]}<\/script>\n<script>(function(){\n  var $=function(s,c){return (c||document).querySelector(s)}, $$=function(s,c){return [].slice.call((c||document).querySelectorAll(s))};\n  var root=document.querySelector('.ig')||document.documentElement;\n\n  \/* Clear the site's sticky header and mobile bottom menu when present (WordPress). *\/\n  function measure(){\n    var h=0,b=0,hd=$('.elementor-location-header'),bm=$('.wp-bottom-menu');\n    if(hd&&\/sticky|fixed\/.test(getComputedStyle(hd).position))h=hd.getBoundingClientRect().height;\n    if(bm){var cs=getComputedStyle(bm);if(cs.display!=='none'&&cs.visibility!=='hidden')b=bm.getBoundingClientRect().height;}\n    root.style.setProperty('--hdr',Math.round(h)+'px'); root.style.setProperty('--bm',Math.round(b)+'px');\n  }\n  measure(); setTimeout(measure,1200); addEventListener('resize',measure,{passive:true});\n\n  \/* Sticky bar: scrollspy, progress, CTA after hero, floating CTA on phones *\/\n  var bar=$('#bar'), prog=$('#prog'), fab=$('#fab'), links=$$('.bar a[href^=\"#\"]').filter(function(a){return !a.classList.contains('btn')});\n  var secs=links.map(function(a){return $(a.getAttribute('href'))});\n  var heroOut=false, formIn=false;\n  function setFab(){fab.classList.toggle('show',heroOut&&!formIn)}\n  new IntersectionObserver(function(e){heroOut=!e[0].isIntersecting;bar.classList.toggle('past',heroOut);$('.bar .btn').tabIndex=heroOut?0:-1;setFab()},{rootMargin:'-80px 0px 0px 0px'}).observe($('#top'));\n  var cons=$('#consultation'); if(cons) new IntersectionObserver(function(e){formIn=e[0].isIntersecting;setFab()},{threshold:0.1}).observe(cons);\n  var nav=$('.bar nav'), current=null;\n  function spy(){\n    var y=innerHeight*0.35, on=null;\n    secs.forEach(function(s,i){if(s&&s.getBoundingClientRect().top<y)on=i});\n    if(on!==current){current=on;links.forEach(function(a,i){a.classList.toggle('on',i===on);a.toggleAttribute('aria-current',i===on)});\n      if(on!==null){var a=links[on];nav.scrollTo({left:a.offsetLeft-24,behavior:matchMedia('(prefers-reduced-motion:reduce)').matches?'auto':'smooth'})}}\n    var max=document.documentElement.scrollHeight-innerHeight; prog.style.transform='scaleX('+(max>0?Math.min(1,scrollY\/max):0)+')';\n  }\n  var raf=0; addEventListener('scroll',function(){if(!raf)raf=requestAnimationFrame(function(){raf=0;spy()})},{passive:true}); spy();\n\n  \/* Source popover (desktop) \/ bottom sheet (phone) *\/\n  var pop=$('#pop'), scrim=$('#scrim'), body=$('#pop-body'), num=$('#pop-n'), openRef=null;\n  function closePop(){ if(!openRef)return; pop.classList.remove('open');scrim.classList.remove('open');openRef.setAttribute('aria-expanded','false');var r=openRef;openRef=null;\n    setTimeout(function(){if(!openRef)pop.hidden=true},320); return r;}\n  function place(ref){\n    if(innerWidth<=640)return;\n    var r=ref.getBoundingClientRect(), w=pop.offsetWidth, h=pop.offsetHeight, m=12;\n    var left=Math.min(Math.max(16,r.left+r.width\/2-w\/2),innerWidth-w-16);\n    var below=r.bottom+m+h<innerHeight-16, top=below?r.bottom+m:r.top-m-h;\n    pop.style.left=left+'px'; pop.style.top=Math.max(16,top)+'px';\n    pop.style.transformOrigin=(r.left+r.width\/2-left)+'px '+(below?'0':'100%');\n  }\n  $$('.ref').forEach(function(a){\n    a.setAttribute('role','button'); a.setAttribute('aria-expanded','false'); a.setAttribute('aria-controls','pop');\n    a.setAttribute('aria-label','Source '+a.textContent);\n    a.addEventListener('click',function(e){\n      e.preventDefault(); e.stopPropagation();\n      if(openRef===a){closePop();return}\n      closePop();\n      var id=a.getAttribute('href').slice(1), li=document.getElementById(id); if(!li)return;\n      num.textContent='Source '+a.textContent; body.innerHTML=li.querySelector('span').innerHTML;\n      $('#pop-all').setAttribute('href','#'+id);\n      pop.hidden=false; place(a); openRef=a; a.setAttribute('aria-expanded','true');\n      requestAnimationFrame(function(){pop.classList.add('open');scrim.classList.add('open')});\n      $('#pop-x').focus({preventScroll:true});\n    });\n  });\n  $('#pop-x').addEventListener('click',function(){var r=closePop();if(r)r.focus({preventScroll:true})});\n  $('#pop-all').addEventListener('click',function(){var id=this.getAttribute('href').slice(1);closePop();var li=document.getElementById(id);if(li){li.classList.add('flash');setTimeout(function(){li.classList.remove('flash')},1600)}});\n  scrim.addEventListener('click',closePop);\n  document.addEventListener('click',function(e){if(openRef&&!pop.contains(e.target))closePop()});\n  document.addEventListener('keydown',function(e){if(e.key==='Escape'&&openRef){var r=closePop();r.focus({preventScroll:true})}});\n  addEventListener('scroll',function(){if(openRef&&innerWidth>640)closePop()},{passive:true});\n\n  \/* Copy identifiers *\/\n  $$('.copy').forEach(function(b){\n    var label=b.lastChild;\n    b.addEventListener('click',function(){\n      var v=b.getAttribute('data-copy'), done=function(){b.classList.add('done');var ig=b.closest('.ig');label.nodeValue=(ig&&ig.getAttribute('data-copied'))||'Copi\u00e9';setTimeout(function(){b.classList.remove('done');label.nodeValue=(ig&&ig.getAttribute('data-copy'))||'Copier'},1500)};\n      try{navigator.clipboard.writeText(v).then(done,function(){sel(b);done()})}catch(_){sel(b);done()}\n    });\n  });\n  function sel(b){var s=b.previousElementSibling,r=document.createRange();r.selectNodeContents(s);var g=getSelection();g.removeAllRanges();g.addRange(r)}\n\n  \/* Research filter *\/\n  $$('#rfilter button').forEach(function(b){b.addEventListener('click',function(){\n    var d=b.getAttribute('data-d'); $$('#rfilter button').forEach(function(x){x.setAttribute('aria-pressed',x===b)});\n    $$('.domain').forEach(function(s){s.hidden=!(d==='all'||s.getAttribute('data-d')===d)});\n  })});\n\n  \/* Product tabs (phones) *\/\n  $$('#ptabs button').forEach(function(b){b.addEventListener('click',function(){\n    $$('#ptabs button').forEach(function(x){x.setAttribute('aria-selected',x===b)});\n    $$('.p-col').forEach(function(c){c.classList.toggle('on',c.id==='pc-'+b.getAttribute('data-p'))});\n  })});\n\n  \/* Comparison picker (phones) *\/\n  $$('#cpick button').forEach(function(b){b.addEventListener('click',function(){\n    $$('#cpick button').forEach(function(x){x.setAttribute('aria-pressed',x===b)}); $('#cmp').setAttribute('data-c',b.getAttribute('data-c'));\n  })});\n\n  \/* Form: inline validation (mockup, no submission) *\/\n  var f=$('#lead'); if(!f) return;\n  f.addEventListener('submit',function(e){\n    e.preventDefault(); var ok=true;\n    [['f-name',function(v){return v.trim().length>1}],['f-email',function(v){return \/^[^\\s@]+@[^\\s@]+\\.[^\\s@]+$\/.test(v)}]].forEach(function(p){\n      var i=$('#'+p[0]), good=p[1](i.value); i.closest('.f').classList.toggle('bad',!good); i.setAttribute('aria-invalid',!good); if(!good&&ok){i.focus();ok=false}\n    });\n    if(ok)$('#f-ok').hidden=false;\n  });\n  $$('#lead input').forEach(function(i){i.addEventListener('input',function(){i.closest('.f').classList.remove('bad');i.removeAttribute('aria-invalid')})});\n})();\n<\/script>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-f795d64 e-flex e-con-full lpf-sec e-con e-parent\" data-id=\"f795d64\" data-element_type=\"container\" data-e-type=\"container\" id=\"consultation\">\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-be0231a e-flex e-con-full lpf-card e-con e-child\" data-id=\"be0231a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-644a736 elementor-widget elementor-widget-html\" data-id=\"644a736\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<style>\n#consultation{scroll-margin-top:110px}\nbody .e-con.lpf-sec{background:#edf5f2!important;padding:clamp(48px,6vw,88px) 16px!important;margin:0!important}\nbody .e-con.lpf-card{--bg:#fbfdfc;--paper:#fff;--mint:#edf5f2;--ink:#10292a;--muted:#51686a;--line:#d6e4e0;--teal:#2f7266;--deep:#0f3a35;--f-display:\"Proxima Nova\",system-ui,sans-serif;--f-body:\"Lato\",system-ui,sans-serif;\n --display:block;display:block!important;width:100%;max-width:760px!important;margin:0 auto!important;background:#fff;border-radius:28px;padding:clamp(22px,3vw,40px)!important;box-shadow:0 1px 0 rgb(16 58 53\/.04),0 30px 70px -36px rgb(16 58 53\/.45),0 0 0 1px #d6e4e0;color:var(--ink);font:400 16px\/1.55 var(--f-body)}\nbody .e-con.lpf-card *{box-sizing:border-box}\nbody .e-con.lpf-card>.elementor-element,body .lpf-card .elementor-widget-container,body .lpf-card .wpforms-container,body .lpf-card form,body .lpf-card .wpforms-field,body .lpf-card .choices,body .lpf-card .iti{width:100%!important;max-width:100%!important;min-width:0!important;margin:0!important}\nbody .lpf-card .eael-contact-form,body .lpf-card .eael-wpforms{background:transparent!important;padding:0!important;margin:0!important;max-width:none!important;box-shadow:none!important;border:0!important}\nbody .lpf-card .dv-card-head{display:flex;gap:16px;align-items:center;margin-bottom:clamp(16px,1.8vw,22px)}\nbody .lpf-card .dv-avatar{flex:none;width:64px;height:64px;border-radius:20px;object-fit:cover;object-position:30% 30%}\nbody .lpf-card .dv-card-head h2{margin:0;font:680 clamp(21px,2vw,26px)\/1.15 var(--f-display);letter-spacing:-.025em;color:var(--ink)}\nbody .lpf-card .dv-card-head p{margin:4px 0 0;color:var(--muted);font-size:14.5px;line-height:1.45}\nbody .lpf-card .dv-reassure{display:flex;gap:10px;align-items:flex-start;margin:14px 0 0;font-size:13px;line-height:1.45;color:var(--muted)}\nbody .lpf-card .dv-reassure svg{flex:none;width:17px;height:17px;margin-top:1px;color:var(--teal)}\nbody .lpf-card .wpforms-head-container,body .lpf-card .wpforms-title,body .lpf-card .wpforms-description{display:none!important}\nbody .lpf-card .wpforms-field-container{display:grid;gap:14px}\nbody .lpf-card .wpforms-field{padding:0!important;float:none!important;width:auto!important}\nbody .lpf-card .wpforms-field-name .wpforms-field-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;max-width:none!important}\nbody .lpf-card .choices.wpforms-field-row{display:block!important}\nbody .lpf-card .wpforms-field-row-block{width:auto!important;padding:0!important;float:none!important}\nbody .lpf-card .wpforms-field-row::before,body .lpf-card .wpforms-field-row::after{display:none!important}\nbody .lpf-card label.wpforms-field-label,body .lpf-card legend.wpforms-field-label{display:block;font:600 13.5px\/1.3 var(--f-body)!important;color:var(--ink)!important;margin:0 0 7px!important;padding:0!important;text-transform:none!important;letter-spacing:normal!important}\nbody .lpf-card fieldset{border:0!important;padding:0!important;margin:0!important;min-width:0}\nbody .lpf-card .wpforms-label-hide{position:static!important;width:auto!important;height:auto!important;overflow:visible!important;clip:auto!important}\nbody .lpf-card .wpforms-sublabel-hide{position:absolute!important;width:1px!important;height:1px!important;overflow:hidden!important;clip:rect(0 0 0 0)!important}\nbody .lpf-card .wpforms-required-label{color:var(--teal)!important}\nbody .lpf-card input[type=text],body .lpf-card input[type=email],body .lpf-card input[type=tel],body .lpf-card input[type=url],body .lpf-card input[type=number],body .lpf-card select,body .lpf-card textarea{width:100%!important;max-width:none!important;font:400 15.5px\/1.4 var(--f-body)!important;color:var(--ink)!important;background:var(--bg)!important;border:1px solid var(--line)!important;border-radius:14px!important;padding:13px 15px!important;height:auto!important;min-height:50px;box-shadow:none!important;transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease}\nbody .lpf-card .iti input[type=tel]{padding-left:52px!important}\nbody .lpf-card textarea{min-height:120px;resize:vertical}\nbody .lpf-card input:focus,body .lpf-card select:focus,body .lpf-card textarea:focus{outline:0!important;border-color:var(--teal)!important;background-color:var(--paper)!important;box-shadow:0 0 0 4px rgb(47 114 102\/.14)!important}\nbody .lpf-card ::placeholder{color:#8aa09d;opacity:1}\nbody .lpf-card .wpforms-submit-container{margin-top:6px!important;padding:0!important}\nbody .lpf-card button.wpforms-submit{width:100%!important;display:inline-flex!important;align-items:center;justify-content:center;gap:10px;font:650 16px\/1 var(--f-body)!important;color:#fff!important;background:var(--deep)!important;border:0!important;border-radius:99px!important;padding:19px 26px!important;min-height:58px;cursor:pointer;box-shadow:0 14px 30px -14px rgb(16 58 53\/.7)!important;transition:transform .16s cubic-bezier(.23,1,.32,1),background-color .2s ease}\n@media (hover:hover) and (pointer:fine){body .lpf-card button.wpforms-submit:hover{background:var(--teal)!important}}\nbody .lpf-card button.wpforms-submit:active{transform:scale(.98)}\nbody .lpf-card .wpforms-error,body .lpf-card label.wpforms-error,body .lpf-card em.wpforms-error{display:block;color:#b3261e!important;font-size:12.5px!important;margin-top:5px!important}\nbody .lpf-card input.wpforms-error,body .lpf-card select.wpforms-error,body .lpf-card textarea.wpforms-error{border-color:#d26a5f!important}\nbody .lpf-card .wpforms-confirmation-container-full{background:var(--mint)!important;border:0!important;border-radius:18px!important;color:var(--ink)!important;padding:22px!important}\n@media (max-width:520px){body .lpf-card .wpforms-field-name .wpforms-field-row{grid-template-columns:1fr}}\n<\/style><div class=\"dv-card-head\"><img loading=\"lazy\" class=\"dv-avatar\" src=\"https:\/\/carmelcosmeticslabs.com\/wp-content\/uploads\/2026\/09\/lancer-marque-cosmetique-etape-1-expert-carmel-768x953.webp\" alt=\"Carmel Cosmetics Labs product specialist with a brand founder\" width=\"768\" height=\"953\" loading=\"lazy\" decoding=\"async\" title=\"| Carmel Cosmetics Labs\"><div><h2>Tell us about your project<\/h2><p>A product specialist reviews your request and gets back to you on the channel you prefer.<\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b6fa452 dv-form eael-wpforms-labels-yes eael-wpforms-form-button-custom elementor-widget elementor-widget-eael-wpforms\" data-id=\"b6fa452\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"eael-wpforms.default\">\n\t\t\t\t\t            <div class=\"eael-contact-form eael-wpforms eael-wpforms-align-default\">\n                                <div class=\"wpforms-container wpforms-container-full wpforms-render-modern\" id=\"wpforms-28270\"><form id=\"wpforms-form-28270\" class=\"wpforms-validate wpforms-form wpforms-ajax-form\" data-formid=\"28270\" method=\"post\" enctype=\"multipart\/form-data\" action=\"\/en\/wp-json\/wp\/v2\/pages\/54672\" data-token=\"1a6c3a68ef8f7b7f2f6489a2cc53529c\" data-token-time=\"1794233789\"><div class=\"wpforms-head-container\"><div class=\"wpforms-title\">Lead EN \u2013 Demande de devis<\/div><div class=\"wpforms-description\">Tell us about your project. A product specialist will get back to you shortly.<\/div><\/div><noscript class=\"wpforms-error-noscript\">Please enable JavaScript in your browser to complete this form.<\/noscript><div id=\"wpforms-error-noscript\" style=\"display: none;\">Please enable JavaScript in your browser to complete this form.<\/div><div class=\"wpforms-field-container\"><div id=\"wpforms-28270-field_26-container\" class=\"wpforms-field wpforms-field-html\" data-field-type=\"html\" data-field-id=\"26\"><div id=\"wpforms-28270-field_26\" aria-errormessage=\"wpforms-28270-field_26-error\"><center>CONTACT INFORMATION<\/center><\/div><\/div><div id=\"wpforms-28270-field_8-container\" class=\"wpforms-field wpforms-field-name\" data-field-type=\"name\" data-field-id=\"8\"><fieldset><legend class=\"wpforms-field-label wpforms-label-hide\" aria-hidden=\"false\">Name <span class=\"wpforms-required-label\" aria-hidden=\"true\">*<\/span><\/legend><div class=\"wpforms-field-row wpforms-field-large\"><div class=\"wpforms-field-row-block wpforms-first wpforms-one-half\"><input type=\"text\" id=\"wpforms-28270-field_8\" class=\"wpforms-field-name-first wpforms-field-required\" name=\"wpforms[fields][8][first]\" placeholder=\"First Name\" aria-errormessage=\"wpforms-28270-field_8-error\" required><label for=\"wpforms-28270-field_8\" class=\"wpforms-field-sublabel after wpforms-sublabel-hide\">Pr\u00e9nom<\/label><\/div><div class=\"wpforms-field-row-block wpforms-one-half\"><input type=\"text\" id=\"wpforms-28270-field_8-last\" class=\"wpforms-field-name-last wpforms-field-required\" name=\"wpforms[fields][8][last]\" placeholder=\"Last Name\" aria-errormessage=\"wpforms-28270-field_8-last-error\" required><label for=\"wpforms-28270-field_8-last\" class=\"wpforms-field-sublabel after wpforms-sublabel-hide\">Nom<\/label><\/div><\/div><\/fieldset><\/div><div id=\"wpforms-28270-field_10-container\" class=\"wpforms-field wpforms-field-layout\" data-field-type=\"layout\" data-field-id=\"10\"><div class=\"wpforms-field-layout-columns wpforms-field-layout-preset-50-50\"><div class=\"wpforms-layout-column wpforms-layout-column-50\" ><div id=\"wpforms-28270-field_9-container\" class=\"wpforms-field wpforms-field-email\" data-field-type=\"email\" data-field-id=\"9\"><label class=\"wpforms-field-label wpforms-label-hide\" for=\"wpforms-28270-field_9\" aria-hidden=\"false\">Email <span class=\"wpforms-required-label\" aria-hidden=\"true\">*<\/span><\/label><input type=\"email\" id=\"wpforms-28270-field_9\" class=\"wpforms-field-medium wpforms-field-required\" name=\"wpforms[fields][9]\" placeholder=\"Email\" spellcheck=\"false\" aria-errormessage=\"wpforms-28270-field_9-error\" required><\/div><div id=\"wpforms-28270-field_39-container\" class=\"wpforms-field wpforms-field-select wpforms-field-select-style-modern\" data-field-type=\"select\" data-field-id=\"39\"><label class=\"wpforms-field-label\" for=\"wpforms-28270-field_39\">Preferred Contact Method<\/label><select id=\"wpforms-28270-field_39\" class=\"wpforms-field-medium choicesjs-select\" data-size-class=\"wpforms-field-row wpforms-field-medium\" data-search-enabled=\"\" name=\"wpforms[fields][39]\"><option value=\"\" class=\"placeholder\" disabled  selected='selected'>Please select your preferred method of contact<\/option><option value=\"WhatsApp\"  class=\"choice-1 depth-1\"  >WhatsApp<\/option><option value=\"Email\"  class=\"choice-2 depth-1\"  >Email<\/option><option value=\"Call only\"  class=\"choice-3 depth-1\"  >Call only<\/option><\/select><\/div><\/div><div class=\"wpforms-layout-column wpforms-layout-column-50\" ><div id=\"wpforms-28270-field_11-container\" class=\"wpforms-field wpforms-field-phone\" data-field-type=\"phone\" data-field-id=\"11\"><label class=\"wpforms-field-label wpforms-label-hide\" for=\"wpforms-28270-field_11\" aria-hidden=\"false\">Phone <span class=\"wpforms-required-label\" aria-hidden=\"true\">*<\/span><\/label><input type=\"tel\" id=\"wpforms-28270-field_11\" class=\"wpforms-field-medium wpforms-field-required wpforms-smart-phone-field\" data-rule-smart-phone-field=\"true\" name=\"wpforms[fields][11]\" placeholder=\"Phone\" aria-label=\"Phone\" aria-errormessage=\"wpforms-28270-field_11-error\" required><\/div><div id=\"wpforms-28270-field_13-container\" class=\"wpforms-field wpforms-field-text\" data-field-type=\"text\" data-field-id=\"13\"><label class=\"wpforms-field-label wpforms-label-hide\" for=\"wpforms-28270-field_13\" aria-hidden=\"false\">Company or brand name \/ website<\/label><input type=\"text\" id=\"wpforms-28270-field_13\" class=\"wpforms-field-medium\" name=\"wpforms[fields][13]\" placeholder=\"Company or brand name \/ website\" aria-errormessage=\"wpforms-28270-field_13-error\" ><\/div><\/div><\/div><\/div><div id=\"wpforms-28270-field_27-container\" class=\"wpforms-field wpforms-field-html\" data-field-type=\"html\" data-field-id=\"27\"><div id=\"wpforms-28270-field_27\" aria-errormessage=\"wpforms-28270-field_27-error\"><center>PROJECT INFORMATION<\/center><\/div><\/div><div id=\"wpforms-28270-field_35-container\" class=\"wpforms-field wpforms-field-checkbox wpforms-list-2-columns\" data-field-type=\"checkbox\" data-field-id=\"35\"><fieldset><legend class=\"wpforms-field-label\">Which cosmetics category interests you most? <span class=\"wpforms-required-label\" aria-hidden=\"true\">*<\/span><\/legend><ul id=\"wpforms-28270-field_35\" class=\"wpforms-field-required\"><li class=\"choice-1 depth-1\"><input type=\"checkbox\" id=\"wpforms-28270-field_35_1\" name=\"wpforms[fields][35][]\" value=\"Face care Products\" aria-errormessage=\"wpforms-28270-field_35_1-error\" required ><label class=\"wpforms-field-label-inline\" for=\"wpforms-28270-field_35_1\">Face care Products<\/label><\/li><li class=\"choice-2 depth-1\"><input type=\"checkbox\" id=\"wpforms-28270-field_35_2\" name=\"wpforms[fields][35][]\" value=\"Haircare Products\" aria-errormessage=\"wpforms-28270-field_35_2-error\" required ><label class=\"wpforms-field-label-inline\" for=\"wpforms-28270-field_35_2\">Haircare Products<\/label><\/li><li class=\"choice-3 depth-1\"><input type=\"checkbox\" id=\"wpforms-28270-field_35_3\" name=\"wpforms[fields][35][]\" value=\"Bodycare Products\" aria-errormessage=\"wpforms-28270-field_35_3-error\" required ><label class=\"wpforms-field-label-inline\" for=\"wpforms-28270-field_35_3\">Bodycare Products<\/label><\/li><li class=\"choice-4 depth-1\"><input type=\"checkbox\" id=\"wpforms-28270-field_35_4\" name=\"wpforms[fields][35][]\" value=\"Lipcare Products\" aria-errormessage=\"wpforms-28270-field_35_4-error\" required ><label class=\"wpforms-field-label-inline\" for=\"wpforms-28270-field_35_4\">Lipcare Products<\/label><\/li><li class=\"choice-5 depth-1\"><input type=\"checkbox\" id=\"wpforms-28270-field_35_5\" name=\"wpforms[fields][35][]\" value=\"Men&#039;s grooming Products\" aria-errormessage=\"wpforms-28270-field_35_5-error\" required ><label class=\"wpforms-field-label-inline\" for=\"wpforms-28270-field_35_5\">Men's grooming Products<\/label><\/li><li class=\"choice-6 depth-1\"><input type=\"checkbox\" id=\"wpforms-28270-field_35_6\" name=\"wpforms[fields][35][]\" value=\"Niche Products\" aria-errormessage=\"wpforms-28270-field_35_6-error\" required ><label class=\"wpforms-field-label-inline\" for=\"wpforms-28270-field_35_6\">Niche Products<\/label><\/li><li class=\"choice-7 depth-1\"><input type=\"checkbox\" id=\"wpforms-28270-field_35_7\" name=\"wpforms[fields][35][]\" value=\"Intimate Products\" aria-errormessage=\"wpforms-28270-field_35_7-error\" required ><label class=\"wpforms-field-label-inline\" for=\"wpforms-28270-field_35_7\">Intimate Products<\/label><\/li><li class=\"choice-8 depth-1\"><input type=\"checkbox\" id=\"wpforms-28270-field_35_8\" name=\"wpforms[fields][35][]\" value=\"Others\" aria-errormessage=\"wpforms-28270-field_35_8-error\" required ><label class=\"wpforms-field-label-inline\" for=\"wpforms-28270-field_35_8\">Others<\/label><\/li><\/ul><\/fieldset><\/div><div id=\"wpforms-28270-field_30-container\" class=\"wpforms-field wpforms-field-select wpforms-field-select-style-modern\" data-field-type=\"select\" data-field-id=\"30\"><label class=\"wpforms-field-label\" for=\"wpforms-28270-field_30\">What would be the quantity of your order per product? <span class=\"wpforms-required-label\" aria-hidden=\"true\">*<\/span><\/label><select id=\"wpforms-28270-field_30\" class=\"wpforms-field-large wpforms-field-required choicesjs-select\" data-size-class=\"wpforms-field-row wpforms-field-large\" data-search-enabled=\"\" name=\"wpforms[fields][30]\" required=\"required\"><option value=\"\" class=\"placeholder\" disabled  selected='selected'><\/option><option value=\"less than 1000 units\"  class=\"choice-1 depth-1\"  >less than 1000 units<\/option><option value=\"1000 - 5000 units\"  class=\"choice-3 depth-1\"  >1000 - 5000 units<\/option><option value=\"5000 - 10000 units\"  class=\"choice-6 depth-1\"  >5000 - 10000 units<\/option><option value=\"10000 - 50000 units\"  class=\"choice-7 depth-1\"  >10000 - 50000 units<\/option><option value=\"more than 50000 units\"  class=\"choice-4 depth-1\"  >more than 50000 units<\/option><option value=\"Not sure yet\"  class=\"choice-8 depth-1\"  >Not sure yet<\/option><\/select><\/div><div id=\"wpforms-28270-field_22-container\" class=\"wpforms-field wpforms-field-textarea\" data-field-type=\"textarea\" data-field-id=\"22\"><label class=\"wpforms-field-label\" for=\"wpforms-28270-field_22\">Please describe your project?<\/label><textarea id=\"wpforms-28270-field_22\" class=\"wpforms-field-medium\" name=\"wpforms[fields][22]\" placeholder=\"Your products and objectives? Detailed cosmetic product specifications? A link to download your reference files or images? Or anything else that might help us better understand your project.\" aria-errormessage=\"wpforms-28270-field_22-error\" ><\/textarea><\/div><div id=\"wpforms-28270-field_24-container\" class=\"wpforms-field wpforms-field-content\" data-field-type=\"content\" data-field-id=\"24\"><div id=\"wpforms-28270-field_24\" class=\"wpforms-field-large wpforms-field-row\" aria-errormessage=\"wpforms-28270-field_24-error\"><p>By submitting this form, you agree to our terms of service and privacy policy.<\/p>\n<div class=\"wpforms-field-content-display-frontend-clear\"><\/div><\/div><\/div><div id=\"wpforms-28270-field_52-container\" class=\"wpforms-field wpforms-field-hidden ccl-utm_source\" data-field-type=\"hidden\" data-field-id=\"52\"><input type=\"hidden\" id=\"wpforms-28270-field_52\" name=\"wpforms[fields][52]\"><\/div><div id=\"wpforms-28270-field_53-container\" class=\"wpforms-field wpforms-field-hidden ccl-utm_medium\" data-field-type=\"hidden\" data-field-id=\"53\"><input type=\"hidden\" id=\"wpforms-28270-field_53\" name=\"wpforms[fields][53]\"><\/div><div id=\"wpforms-28270-field_54-container\" class=\"wpforms-field wpforms-field-hidden ccl-utm_campaign\" data-field-type=\"hidden\" data-field-id=\"54\"><input type=\"hidden\" id=\"wpforms-28270-field_54\" name=\"wpforms[fields][54]\"><\/div><div id=\"wpforms-28270-field_55-container\" class=\"wpforms-field wpforms-field-hidden ccl-utm_term\" data-field-type=\"hidden\" data-field-id=\"55\"><input type=\"hidden\" id=\"wpforms-28270-field_55\" name=\"wpforms[fields][55]\"><\/div><div id=\"wpforms-28270-field_56-container\" class=\"wpforms-field wpforms-field-hidden ccl-utm_content\" data-field-type=\"hidden\" data-field-id=\"56\"><input type=\"hidden\" id=\"wpforms-28270-field_56\" name=\"wpforms[fields][56]\"><\/div><div id=\"wpforms-28270-field_57-container\" class=\"wpforms-field wpforms-field-hidden ccl-gclid\" data-field-type=\"hidden\" data-field-id=\"57\"><input type=\"hidden\" id=\"wpforms-28270-field_57\" name=\"wpforms[fields][57]\"><\/div><div id=\"wpforms-28270-field_58-container\" class=\"wpforms-field wpforms-field-hidden ccl-gbraid\" data-field-type=\"hidden\" data-field-id=\"58\"><input type=\"hidden\" id=\"wpforms-28270-field_58\" name=\"wpforms[fields][58]\"><\/div><div id=\"wpforms-28270-field_59-container\" class=\"wpforms-field wpforms-field-hidden ccl-wbraid\" data-field-type=\"hidden\" data-field-id=\"59\"><input type=\"hidden\" id=\"wpforms-28270-field_59\" name=\"wpforms[fields][59]\"><\/div><div id=\"wpforms-28270-field_60-container\" class=\"wpforms-field wpforms-field-hidden ccl-fbclid\" data-field-type=\"hidden\" data-field-id=\"60\"><input type=\"hidden\" id=\"wpforms-28270-field_60\" name=\"wpforms[fields][60]\"><\/div><div id=\"wpforms-28270-field_61-container\" class=\"wpforms-field wpforms-field-hidden ccl-landing\" data-field-type=\"hidden\" data-field-id=\"61\"><input type=\"hidden\" id=\"wpforms-28270-field_61\" name=\"wpforms[fields][61]\"><\/div><div id=\"wpforms-28270-field_62-container\" class=\"wpforms-field wpforms-field-hidden ccl-referrer\" data-field-type=\"hidden\" data-field-id=\"62\"><input type=\"hidden\" id=\"wpforms-28270-field_62\" name=\"wpforms[fields][62]\"><\/div><div id=\"wpforms-28270-field_63-container\" class=\"wpforms-field wpforms-field-hidden ccl-first_touch\" data-field-type=\"hidden\" data-field-id=\"63\"><input type=\"hidden\" id=\"wpforms-28270-field_63\" name=\"wpforms[fields][63]\"><\/div><div id=\"wpforms-28270-field_64-container\" class=\"wpforms-field wpforms-field-hidden ccl-canal\" data-field-type=\"hidden\" data-field-id=\"64\"><input type=\"hidden\" id=\"wpforms-28270-field_64\" name=\"wpforms[fields][64]\"><\/div><div id=\"wpforms-28270-field_65-container\" class=\"wpforms-field wpforms-field-hidden ccl-campagne\" data-field-type=\"hidden\" data-field-id=\"65\"><input type=\"hidden\" id=\"wpforms-28270-field_65\" name=\"wpforms[fields][65]\"><\/div><\/div><!-- .wpforms-field-container --><div class=\"wpforms-submit-container\" ><input type=\"hidden\" name=\"wpforms[id]\" value=\"28270\"><input type=\"hidden\" name=\"wpforms[time_token]\" value=\"1794233789.9e916ea1f02f42613fc1457b805466c3041bd66ce4a4bd78d064b7f633b8683b\"><input type=\"hidden\" name=\"page_title\" value=\"\"><input type=\"hidden\" name=\"page_url\" value=\"https:\/\/carmelcosmeticslabs.com\/en\/wp-json\/wp\/v2\/pages\/54672\"><input type=\"hidden\" name=\"url_referer\" value=\"\"><button type=\"submit\" name=\"wpforms[submit]\" id=\"wpforms-submit-28270\" class=\"wpforms-submit\" data-alt-text=\"Sending...\" data-submit-text=\"Get my free consultation\" aria-live=\"assertive\" value=\"wpforms-submit\">Get my free consultation<\/button><img decoding=\"async\" src=\"https:\/\/carmelcosmeticslabs.com\/wp-content\/plugins\/wpforms\/assets\/images\/submit-spin.svg\" class=\"wpforms-submit-spinner\" style=\"display: none;\" width=\"26\" height=\"26\" alt=\"Loading\" title=\"| Carmel Cosmetics Labs\"><\/div><\/form><\/div>  <!-- .wpforms-container -->            <\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-db0d306 elementor-widget elementor-widget-html\" data-id=\"db0d306\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<p class=\"dv-reassure\"><svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\"><rect x=\"4\" y=\"11\" width=\"16\" height=\"10\" rx=\"2\"\/><path d=\"M8 11V7a4 4 0 0 1 8 0v4\"\/><\/svg>No obligation. Your information stays confidential and is used only to prepare your quote.<\/p><script>(function(){var s=document.getElementById('consultation');if(!s)return;\nvar re=\/\\\/(demande-de-devis|request-a-quote|kostenvoranschlag-anfordern|%d8%b7%d9%84%d8%a8-%d8%a7%d9%82%d8%aa%d8%a8%d8%a7%d8%b3|\u0637\u0644\u0628-\u0627\u0642\u062a\u0628\u0627\u0633)\\\/?([?#].*)?$\/i;\nvar root=s.closest('[data-elementor-type=\"wp-page\"]')||document;\nroot.querySelectorAll('a[href]').forEach(function(a){var h=a.getAttribute('href')||'',d=h;try{d=decodeURIComponent(h);}catch(e){}if(re.test(h)||re.test(d)){a.setAttribute('href','#consultation');}});\ndocument.addEventListener('click',function(e){var a=e.target.closest&&e.target.closest('a[href=\"#consultation\"]');if(!a)return;e.preventDefault();\nvar sm=!matchMedia('(prefers-reduced-motion: reduce)').matches;s.scrollIntoView({behavior:sm?'smooth':'auto',block:'start'});\nvar f=s.querySelector('form input:not([type=hidden]),form select,form textarea');\nvar off=function(){return Math.abs(s.getBoundingClientRect().top-110)>24},fix=function(){if(off())s.scrollIntoView({behavior:'auto',block:'start'});setTimeout(function(){if(off())s.scrollIntoView({behavior:'auto',block:'start'});if(f)try{f.focus({preventScroll:true})}catch(_){}},350)};\nvar last=-1,still=0,n=0,iv=setInterval(function(){var y=scrollY;still=(y===last)?still+1:0;last=y;if(still>=3||++n>50){clearInterval(iv);fix();}},120);\nif(history.replaceState)history.replaceState(null,'','#consultation');});})();<\/script>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Hydrolyzed keratin in cosmetics: INCI, CAS, hair studies, formaldehyde and smoothing products, and 8 white label formulas to customize.<\/p>\n","protected":false},"author":3,"featured_media":54478,"parent":20287,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-54672","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/carmelcosmeticslabs.com\/en\/wp-json\/wp\/v2\/pages\/54672","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/carmelcosmeticslabs.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/carmelcosmeticslabs.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/carmelcosmeticslabs.com\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/carmelcosmeticslabs.com\/en\/wp-json\/wp\/v2\/comments?post=54672"}],"version-history":[{"count":0,"href":"https:\/\/carmelcosmeticslabs.com\/en\/wp-json\/wp\/v2\/pages\/54672\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/carmelcosmeticslabs.com\/en\/wp-json\/wp\/v2\/pages\/20287"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/carmelcosmeticslabs.com\/en\/wp-json\/wp\/v2\/media\/54478"}],"wp:attachment":[{"href":"https:\/\/carmelcosmeticslabs.com\/en\/wp-json\/wp\/v2\/media?parent=54672"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}