{"id":62071,"date":"2026-11-03T06:51:32","date_gmt":"2026-11-03T06:51:32","guid":{"rendered":"https:\/\/carmelcosmeticslabs.com\/?page_id=62071"},"modified":"2026-11-10T09:33:14","modified_gmt":"2026-11-10T09:33:14","slug":"acido-kojico","status":"publish","type":"page","link":"https:\/\/carmelcosmeticslabs.com\/pt-pt\/glossario-ingredientes-cosmeticos\/acido-kojico\/","title":{"rendered":"\u00c1cido k\u00f3jico"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"62071\" class=\"elementor elementor-62071 elementor-54460 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-c93e1fa e-flex e-con-full e-con e-parent\" data-id=\"c93e1fa\" data-element_type=\"container\" data-e-type=\"container\" id=\"ing-acide-kojique\">\n\t\t\t\t<div class=\"elementor-element elementor-element-dbfb75b elementor-widget 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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=\"acide-kojique\" lang=\"pt\" data-copy=\"Copiar\" data-copied=\"Copiado\">\n<nav class=\"crumbs wrap\" aria-label=\"Caminho de navega\u00e7\u00e3o\"><ol>\n  <li><a href=\"https:\/\/carmelcosmeticslabs.com\/pt-pt\/\">In\u00edcio<\/a><\/li><li><a href=\"https:\/\/carmelcosmeticslabs.com\/pt-pt\/glossario-ingredientes-cosmeticos\/\">Gloss\u00e1rio de ingredientes<\/a><\/li><li aria-current=\"page\">\u00c1cido k\u00f3jico<\/li><\/ol><\/nav>\n<header class=\"wrap hero\" id=\"top\">\n  <div class=\"hero-copy\">\n    <h1>\u00c1cido k\u00f3jico<\/h1>\n    <p class=\"brief\">O \u00e1cido k\u00f3jico \u00e9 um metabolito de origem f\u00fangica que inibe a tirosinase, uma enzima da s\u00edntese de melanina<a class=\"ref\" href=\"#src-9\">9<\/a>. Desde o Regulamento (UE) 2024\/996, s\u00f3 \u00e9 autorizado como aclarador da pele, em produtos para o rosto e as m\u00e3os, at\u00e9 um m\u00e1ximo de 1%<a class=\"ref\" href=\"#src-2\">2<\/a>. O painel CIR considera-o seguro at\u00e9 esse limite<a class=\"ref\" href=\"#src-3\">3<\/a>.<\/p>\n    <div class=\"byline\"><span class=\"avatar\" aria-hidden=\"true\">ME<\/span>\n      <span><strong>Mohamed El Hjouji<\/strong>Fundador e diretor executivo \u00b7 Atualizado <time datetime=\"2026-11-02\">2 de novembro de 2026<\/time> \u00b7 Tempo de leitura 9 min<\/span><\/div>\n    <div class=\"actions\">\n      <a class=\"btn\" href=\"#consultation\">Criar um produto com \u00e1cido k\u00f3jico <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\">Consultar os estudos<\/a>\n    <\/div>\n  <\/div>\n  <figure class=\"hero-photo\"><img fetchpriority=\"high\" src=\"https:\/\/carmelcosmeticslabs.com\/wp-content\/uploads\/2026\/11\/acide-kojique-ingredient-cosmetique-carmel.webp\" srcset=\"https:\/\/carmelcosmeticslabs.com\/wp-content\/uploads\/2026\/11\/acide-kojique-ingredient-cosmetique-carmel-300x224.webp 300w, https:\/\/carmelcosmeticslabs.com\/wp-content\/uploads\/2026\/11\/acide-kojique-ingredient-cosmetique-carmel-441x329.webp 441w, https:\/\/carmelcosmeticslabs.com\/wp-content\/uploads\/2026\/11\/acide-kojique-ingredient-cosmetique-carmel-768x574.webp 768w, https:\/\/carmelcosmeticslabs.com\/wp-content\/uploads\/2026\/11\/acide-kojique-ingredient-cosmetique-carmel-990x740.webp 990w, https:\/\/carmelcosmeticslabs.com\/wp-content\/uploads\/2026\/11\/acide-kojique-ingredient-cosmetique-carmel-1024x765.webp 1024w, https:\/\/carmelcosmeticslabs.com\/wp-content\/uploads\/2026\/11\/acide-kojique-ingredient-cosmetique-carmel.webp 1400w, https:\/\/carmelcosmeticslabs.com\/wp-content\/uploads\/2026\/11\/acide-kojique-ingredient-cosmetique-carmel.webp 1400w\" sizes=\"(max-width:900px) 92vw, 46vw\" width=\"1400\" height=\"1046\" alt=\"\u00c1cido k\u00f3jico em p\u00f3, visto em macro sobre uma superf\u00edcie de cer\u00e2mica verde-s\u00e1lvia\" 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=\"Nesta p\u00e1gina\"><ul><li><a href=\"#identite\">Identidade<\/a><\/li><li><a href=\"#recherche\">Investiga\u00e7\u00e3o<\/a><\/li><li><a href=\"#concentrations\">Concentra\u00e7\u00f5es<\/a><\/li><li><a href=\"#produits\">Produtos<\/a><\/li><li><a href=\"#comparatif\">Compara\u00e7\u00e3o<\/a><\/li><li><a href=\"#faq\">Perguntas<\/a><\/li><li><a href=\"#plus\">Leituras<\/a><\/li><li><a href=\"#sources\">Fontes<\/a><\/li><\/ul><\/nav>\n  <a class=\"btn sm\" href=\"#consultation\" tabindex=\"-1\">Criar o meu produto <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\">\u00c1cido k\u00f3jico em resumo<\/h2>\n  <p class=\"lede\">Entrada do nosso <a class=\"txt-link\" href=\"https:\/\/carmelcosmeticslabs.com\/pt-pt\/glossario-ingredientes-cosmeticos\/\">gloss\u00e1rio de ingredientes cosm\u00e9ticos<\/a>. Dados regulamentares da base CosIng da Comiss\u00e3o Europeia<a class=\"ref\" href=\"#src-1\">1<\/a> e do Regulamento (UE) 2024\/996<a class=\"ref\" href=\"#src-2\">2<\/a>, seguran\u00e7a segundo o painel de especialistas CIR<a class=\"ref\" href=\"#src-3\">3<\/a>. Copie os identificadores com um clique para os seus dossiers.<\/p><\/div>\n  <dl class=\"spec\"><div><dt>Nome INCI<\/dt><dd><span class=\"\">KOJIC ACID<\/span><button class=\"copy\" type=\"button\" data-copy=\"KOJIC ACID\" aria-label=\"Copiar: Nome INCI\"><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>Copiar<\/button><\/dd><\/div><div><dt>Outros nomes<\/dt><dd>5-hidroxi-2-(hidroximetil)-4H-piran-4-ona<small>Nome qu\u00edmico na CosIng<a class=\"ref\" href=\"#src-1\">1<\/a><\/small><\/dd><\/div><div><dt>N\u00famero CAS<\/dt><dd><span class=\"num\">501-30-4<\/span><button class=\"copy\" type=\"button\" data-copy=\"501-30-4\" aria-label=\"Copiar: N\u00famero CAS\"><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>Copiar<\/button><\/dd><\/div><div><dt>N\u00famero CE<\/dt><dd><span class=\"num\">207-922-4<\/span><button class=\"copy\" type=\"button\" data-copy=\"207-922-4\" aria-label=\"Copiar: N\u00famero CE\"><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>Copiar<\/button><\/dd><\/div><div><dt>Fun\u00e7\u00f5es CosIng<\/dt><dd>Antioxidante, aclarador da pele<small>Antioxidante e aclarador na nomenclatura europeia<a class=\"ref\" href=\"#src-1\">1<\/a><\/small><\/dd><\/div><div><dt>Origem<\/dt><dd>Metabolito produzido por fungos<small>Obtido por fermenta\u00e7\u00e3o f\u00fangica<a class=\"ref\" href=\"#src-9\">9<\/a><\/small><\/dd><\/div><div><dt>Aspeto<\/dt><dd>P\u00f3 cristalino<small>Incorporado na fase aquosa; sens\u00edvel \u00e0 oxida\u00e7\u00e3o<a class=\"ref\" href=\"#src-10\">10<\/a><a class=\"ref\" href=\"#src-11\">11<\/a><\/small><\/dd><\/div><div><dt>Estatuto na UE<\/dt><dd>Restrito: anexo III, entrada 375<small>Apenas como aclarador da pele, em produtos para o rosto e as m\u00e3os, at\u00e9 um m\u00e1ximo de 1%<a class=\"ref\" href=\"#src-2\">2<\/a><\/small><\/dd><\/div><div><dt>Calend\u00e1rio<\/dt><dd>Aplic\u00e1vel desde 1 de fevereiro de 2025<small>Os produtos n\u00e3o conformes deixaram de poder ser colocados no mercado nessa data e de poder ser disponibilizados em 1 de novembro de 2025<a class=\"ref\" href=\"#src-2\">2<\/a><\/small><\/dd><\/div><div><dt>Alerg\u00e9nio a declarar<\/dt><dd>N\u00e3o<\/dd><\/div><div><dt>Seguran\u00e7a<\/dt><dd>Considerado seguro at\u00e9 1% em cosm\u00e9tica<small>Conclus\u00f5es do painel CIR<a class=\"ref\" href=\"#src-3\">3<\/a> e do SCCS (parecer de mar\u00e7o de 2022)<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\">O que diz a investiga\u00e7\u00e3o<\/h2>\n  <p class=\"lede\">Cada resultado apresenta o protocolo e o n\u00edvel de evid\u00eancia. Quanto maior for o n\u00edvel, mais aplic\u00e1vel ser\u00e1 o resultado a uma f\u00f3rmula acabada.<\/p><\/div><\/div>\n  <div class=\"r-tools\"><div class=\"seg\" role=\"group\" aria-label=\"Filtrar por \u00e1rea\" id=\"rfilter\"><button type=\"button\" aria-pressed=\"true\" data-d=\"all\">Todos <span>7<\/span><\/button><button type=\"button\" aria-pressed=\"false\" data-d=\"visage\">Rosto e m\u00e3os <span>4<\/span><\/button><button type=\"button\" aria-pressed=\"false\" data-d=\"derm\">Revis\u00f5es <span>3<\/span><\/button><\/div><div class=\"legend\" aria-label=\"N\u00edveis de evid\u00eancia\"><span class=\"lvl\"><i class=\"dot c\"><\/i>Ensaio cl\u00ednico<\/span><span class=\"lvl\"><i class=\"dot r\"><\/i>Revis\u00e3o ou consenso<\/span><span class=\"lvl\"><i class=\"dot v\"><\/i>Laborat\u00f3rio<\/span><\/div><\/div>\n  <div class=\"domain\" data-d=\"visage\"><h3>Pele do rosto e das m\u00e3os<span>Cuidados da pele<\/span><\/h3><div class=\"finds\"><article class=\"find\"><div class=\"find-top\"><h4>Tom de pele mais uniforme com uma combina\u00e7\u00e3o a 1%<\/h4><span class=\"lvl\"><i class=\"dot c\"><\/i>Ensaio cl\u00ednico<\/span><\/div><div class=\"meta\"><span>1% de \u00e1cido k\u00f3jico, 3% de \u00e1cido tranex\u00e2mico, 5% de niacinamida<\/span><span>12 semanas<\/span><span>Mulheres brasileiras, fot\u00f3tipos I a IV<\/span><span>Compara\u00e7\u00e3o com o estado inicial e um controlo<\/span><\/div><p>Melhoria do aspeto das manchas, da textura e da uniformidade do tom da pele a partir da semana 2, com redu\u00e7\u00e3o do \u00edndice de melanina \u00e0s 12 semanas. O efeito resulta da combina\u00e7\u00e3o dos tr\u00eas ativos, e n\u00e3o do \u00e1cido k\u00f3jico isoladamente<a class=\"ref\" href=\"#src-4\">4<\/a>.<\/p><\/article><article class=\"find\"><div class=\"find-top\"><h4>Manchas solares: um resultado pouco favor\u00e1vel<\/h4><span class=\"lvl\"><i class=\"dot c\"><\/i>Ensaio cl\u00ednico<\/span><\/div><div class=\"meta\"><span>1% de \u00e1cido k\u00f3jico, 5% de ascorbil glucosamina, \u00e9steres de AHA<\/span><span>2 a 3 meses<\/span><span>50 mulheres asi\u00e1ticas<\/span><span>Estudo piloto, duas aplica\u00e7\u00f5es por dia<\/span><\/div><p>Esta f\u00f3rmula n\u00e3o demonstrou efic\u00e1cia nos lentigos solares, enquanto um extrato de soja estabilizado proporcionou um aclaramento modesto<a class=\"ref\" href=\"#src-5\">5<\/a>.<\/p><\/article><article class=\"find\"><div class=\"find-top\"><h4>Aclaramento progressivo de manchas solares com uma combina\u00e7\u00e3o<\/h4><span class=\"lvl\"><i class=\"dot c\"><\/i>Ensaio cl\u00ednico<\/span><\/div><div class=\"meta\"><span>\u00c1cido glic\u00f3lico, \u00e1cido k\u00f3jico, lipo-hidroxi\u00e1cido, extrato de Vitreoscilla<\/span><span>3 meses<\/span><span>24 mulheres<\/span><span>Aleatorizado, medi\u00e7\u00e3o sob luz UV<\/span><\/div><p>Aclaramento vis\u00edvel ap\u00f3s 1 m\u00eas de aplica\u00e7\u00e3o di\u00e1ria, que aumenta ao longo de 3 meses. S\u00e3o combinados quatro ativos: o contributo espec\u00edfico do \u00e1cido k\u00f3jico n\u00e3o \u00e9 isolado<a class=\"ref\" href=\"#src-6\">6<\/a>.<\/p><\/article><article class=\"find\"><div class=\"find-top\"><h4>Um aclarador entre 14 mol\u00e9culas comparadas<\/h4><span class=\"lvl\"><i class=\"dot c\"><\/i>Ensaio cl\u00ednico<\/span><\/div><div class=\"meta\"><span>1% de \u00e1cido k\u00f3jico<\/span><span>14 estudos com 15 a 30 mulheres<\/span><span>6 semanas, pigmenta\u00e7\u00e3o induzida pela luz do dia<\/span><\/div><p>O \u00e1cido k\u00f3jico a 1% consta da compara\u00e7\u00e3o, mas a sua posi\u00e7\u00e3o n\u00e3o \u00e9 indicada no resumo. O resumo apenas refere o \u00e1cido asc\u00f3rbico a 7% (segundo aos 4 dias) e a hidroquinona a 4% (segunda ao fim de 1 m\u00eas)<a class=\"ref\" href=\"#src-7\">7<\/a>.<\/p><\/article><\/div><\/div><div class=\"domain\" data-d=\"derm\"><h3>Revis\u00f5es, seguran\u00e7a e estabilidade<span>Seguran\u00e7a<\/span><\/h3><div class=\"finds\"><article class=\"find\"><div class=\"find-top\"><h4>Seguro at\u00e9 1%: sensibiliza\u00e7\u00e3o e aclaramento sob controlo<\/h4><span class=\"lvl\"><i class=\"dot r\"><\/i>Revis\u00e3o<\/span><\/div><div class=\"meta\"><span>Relat\u00f3rio final do painel CIR de 2010<\/span><\/div><p>O \u00e1cido k\u00f3jico \u00e9 absorvido lentamente pela pele humana. O painel conclui que os dois pontos de aten\u00e7\u00e3o, a sensibiliza\u00e7\u00e3o e o aclaramento, n\u00e3o se manifestam abaixo de 1%. Em cobaias de pele negra, o aclaramento surge a 4%, mas n\u00e3o a 1%<a class=\"ref\" href=\"#src-3\">3<\/a>.<\/p><\/article><article class=\"find\"><div class=\"find-top\"><h4>Mecanismo e seguran\u00e7a: duas revis\u00f5es<\/h4><span class=\"lvl\"><i class=\"dot r\"><\/i>Revis\u00e3o<\/span><\/div><div class=\"meta\"><span>2 revis\u00f5es da literatura<\/span><span>2019 e 2022<\/span><\/div><p>O \u00e1cido k\u00f3jico inibe a tirosinase e limita a forma\u00e7\u00e3o de melanina. Uma revis\u00e3o de 2022 considera-o seguro nas concentra\u00e7\u00f5es testadas e salienta que os seus derivados s\u00e3o propostos para limitar a sua degrada\u00e7\u00e3o<a class=\"ref\" href=\"#src-8\">8<\/a><a class=\"ref\" href=\"#src-9\">9<\/a>.<\/p><\/article><article class=\"find\"><div class=\"find-top\"><h4>Um ativo sens\u00edvel \u00e0 oxida\u00e7\u00e3o<\/h4><span class=\"lvl\"><i class=\"dot v\"><\/i>Laborat\u00f3rio<\/span><\/div><div class=\"meta\"><span>Gel e emulgel a 1%<\/span><span>3 meses em condi\u00e7\u00f5es de stresse<\/span><span>Estudo de 2024<\/span><\/div><p>Com metabissulfito de s\u00f3dio, as melhores f\u00f3rmulas conservam 86% (emulgel) e 76% (gel) do \u00e1cido k\u00f3jico; a conserva\u00e7\u00e3o a frio \u00e9 a mais favor\u00e1vel. Sob oxida\u00e7\u00e3o for\u00e7ada, o \u00e1cido k\u00f3jico degrada-se mais lentamente do que o seu \u00e9ster dipalmitato<a class=\"ref\" href=\"#src-10\">10<\/a><a class=\"ref\" href=\"#src-11\">11<\/a>.<\/p><\/article><\/div><\/div>\n  <p class=\"frame\">Esta ficha resume a literatura publicada sobre um ingrediente cosm\u00e9tico. N\u00e3o descreve o efeito de um produto acabado, que depende da sua f\u00f3rmula, nem substitui aconselhamento m\u00e9dico. V\u00e1rios dos ensaios cl\u00ednicos citados foram realizados ou financiados por empresas de cosm\u00e9tica, conforme indicado nas fontes. A evid\u00eancia cl\u00ednica incide quase sempre em combina\u00e7\u00f5es de ativos, e um dos estudos citados n\u00e3o demonstra qualquer efeito.<\/p><\/div><\/section>\n<section class=\"sec\" id=\"concentrations\" aria-labelledby=\"h-c\"><div class=\"wrap dose\">\n  <div><h2 class=\"h2\" id=\"h-c\">Concentra\u00e7\u00f5es utilizadas nos estudos<\/h2><p class=\"lede\">A zona colorida assinala o limite europeu de 1%, aplic\u00e1vel a produtos para o rosto e as m\u00e3os. O painel CIR baseia-se em dados de sensibiliza\u00e7\u00e3o a 2% num produto sem enxaguamento e no aclaramento observado a 4% em cobaias. A concentra\u00e7\u00e3o final de uma f\u00f3rmula \u00e9 definida com o formulador, no \u00e2mbito do Regulamento (UE) 2024\/996.<\/p><\/div>\n  <div class=\"scale dense\" role=\"img\" aria-label=\"Escala de 0 a 5%: limite europeu de 1%, dados de sensibiliza\u00e7\u00e3o a 2% e aclaramento em cobaias a 4%\"><div class=\"track\"><div class=\"band\" style=\"left:0%;width:20%\"><\/div>\n  <div class=\"pin\" style=\"left:20%\"><strong class=\"num\">1%<\/strong><span>Limite na UE, rosto e m\u00e3os<a class=\"ref\" href=\"#src-2\">2<\/a>, seguro segundo o CIR<a class=\"ref\" href=\"#src-3\">3<\/a><\/span><\/div><div class=\"pin\" style=\"left:40%\"><strong class=\"num\">2%<\/strong><span>Dados de sensibiliza\u00e7\u00e3o, produto sem enxaguamento<a class=\"ref\" href=\"#src-3\">3<\/a><\/span><\/div><div class=\"pin\" style=\"left:80%\"><strong class=\"num\">4%<\/strong><span>Aclaramento em cobaias<a class=\"ref\" href=\"#src-3\">3<\/a><\/span><\/div><div class=\"ticks\"><span class=\"tick num\" style=\"left:0%\">0%<\/span><span class=\"tick num\" style=\"left:20%\">1<\/span><span class=\"tick num\" style=\"left:40%\">2<\/span><span class=\"tick num\" style=\"left:60%\">3<\/span><span class=\"tick num\" style=\"left:80%\">4<\/span><span class=\"tick num\" style=\"left:100%\">5%<\/span><\/div><\/div>\n  <ul class=\"pins-list\" aria-hidden=\"true\"><li><strong class=\"num\">1%<\/strong><span>Limite na UE, rosto e m\u00e3os<a class=\"ref\" href=\"#src-2\">2<\/a>, seguro segundo o CIR<a class=\"ref\" href=\"#src-3\">3<\/a><\/span><\/li><li><strong class=\"num\">2%<\/strong><span>Dados de sensibiliza\u00e7\u00e3o, produto sem enxaguamento<a class=\"ref\" href=\"#src-3\">3<\/a><\/span><\/li><li><strong class=\"num\">4%<\/strong><span>Aclaramento em cobaias<a class=\"ref\" href=\"#src-3\">3<\/a><\/span><\/li><\/ul><\/div><\/div><\/section>\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\">Que produtos cont\u00eam \u00e1cido k\u00f3jico?<\/h2>\n  <p class=\"lede\">O nosso <a class=\"txt-link\" href=\"https:\/\/carmelcosmeticslabs.com\/pt-pt\/catalogo-de-cosmeticos-personalizados\/\">cat\u00e1logo de marca branca<\/a> inclui 3 f\u00f3rmulas com \u00e1cido k\u00f3jico: \u00e9 o ativo principal em 3 delas e um ingrediente complementar nas restantes. Todas as categorias podem ser personalizadas (f\u00f3rmula, fragr\u00e2ncia, embalagem).<\/p><\/div>\n  <div class=\"seg p-tabs\" role=\"tablist\" aria-label=\"\u00c1rea\" id=\"ptabs\"><button type=\"button\" role=\"tab\" aria-selected=\"true\" aria-controls=\"pc-visage\" data-p=\"visage\">Rosto <span>2<\/span><\/button><button type=\"button\" role=\"tab\" aria-selected=\"false\" aria-controls=\"pc-corps\" data-p=\"corps\">Corpo <span>1<\/span><\/button><\/div><\/div>\n  <div class=\"p-cols\" style=\"--pc:2\"><div class=\"p-col on\" id=\"pc-visage\" role=\"tabpanel\"><h3><span class=\"count num\">2<\/span>Rosto<\/h3><p>Ativo principal do s\u00e9rum e do creme antimanchas, combinado com alfa-arbutina, em produtos para o rosto autorizados at\u00e9 um m\u00e1ximo de 1%.<\/p><ul><li><a href=\"https:\/\/carmelcosmeticslabs.com\/pt-pt\/catalogo-de-cosmeticos-personalizados\/cremes-rosto-marca-branca\/\"><span>Cremes de rosto<\/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><li><a href=\"https:\/\/carmelcosmeticslabs.com\/pt-pt\/catalogo-de-cosmeticos-personalizados\/seruns-rosto-marca-branca\/\"><span>S\u00e9runs de rosto<\/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\/pt-pt\/catalogo-de-cosmeticos-personalizados\/seruns-rosto-marca-branca\/serum-antimanchas-kojico-marca-branca\/\"><span>S\u00e9rum antimanchas k\u00f3jico<small>Ativo principal<\/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\/pt-pt\/catalogo-de-cosmeticos-personalizados\/cremes-rosto-marca-branca\/creme-antimanchas-acido-kojico-marca-branca\/\"><span>Creme antimanchas com \u00e1cido k\u00f3jico<small>Ativo principal<\/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 class=\"p-col\" id=\"pc-corps\" role=\"tabpanel\"><h3><span class=\"count num\">1<\/span>Corpo<\/h3><p>O Regulamento (UE) 2024\/996 reserva o \u00e1cido k\u00f3jico a produtos para o rosto e as m\u00e3os: uma f\u00f3rmula destinada ao corpo deve ser adaptada a este \u00e2mbito com o formulador.<\/p><ul><li><a href=\"https:\/\/carmelcosmeticslabs.com\/pt-pt\/catalogo-de-cosmeticos-personalizados\/cremes-leites-corporais-marca-branca\/\"><span>Cremes e lo\u00e7\u00f5es corporais<\/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\/pt-pt\/catalogo-de-cosmeticos-personalizados\/cremes-leites-corporais-marca-branca\/leite-corporal-acido-kojico-marca-branca\/\"><span>Leite corporal de \u00e1cido k\u00f3jico<small>Ativo principal<\/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>Nas nossas f\u00f3rmulas, este ingrediente \u00e9 mais frequentemente combinado com<\/p><a class=\"chip\" href=\"https:\/\/carmelcosmeticslabs.com\/pt-pt\/glossario-ingredientes-cosmeticos\/extrato-de-alcacuz\/\">Extrato de alca\u00e7uz <span class=\"num\">2<\/span><\/a><a class=\"chip\" href=\"https:\/\/carmelcosmeticslabs.com\/pt-pt\/glossario-ingredientes-cosmeticos\/oleo-de-amendoas-doces\/\">\u00d3leo de am\u00eandoas doces <span class=\"num\">2<\/span><\/a><a class=\"chip\" href=\"https:\/\/carmelcosmeticslabs.com\/pt-pt\/glossario-ingredientes-cosmeticos\/niacinamida\/\">Niacinamida <span class=\"num\">2<\/span><\/a><a class=\"chip\" href=\"https:\/\/carmelcosmeticslabs.com\/pt-pt\/glossario-ingredientes-cosmeticos\/pantenol\/\">Pantenol <span class=\"num\">2<\/span><\/a><a class=\"chip\" href=\"https:\/\/carmelcosmeticslabs.com\/pt-pt\/glossario-ingredientes-cosmeticos\/vitamina-c\/\">Vitamina C <span class=\"num\">2<\/span><\/a><\/div>\n  <\/div><\/section>\n<section class=\"sec\" id=\"comparatif\" aria-labelledby=\"h-cmp\"><div class=\"wrap\">\n  <h2 class=\"h2\" id=\"h-cmp\">\u00c1cido k\u00f3jico, alfa-arbutina, vitamina C ou niacinamida?<\/h2><p class=\"lede\">Quatro ativos frequentemente associados em cuidados para uniformizar o tom da pele. N\u00e3o se excluem mutuamente e s\u00e3o muitas vezes combinados na mesma f\u00f3rmula.<\/p>\n  <div class=\"seg c-pick\" role=\"group\" aria-label=\"Comparar com\" id=\"cpick\"><button type=\"button\" aria-pressed=\"true\" data-c=\"3\">Alfa-arbutina<\/button><button type=\"button\" aria-pressed=\"false\" data-c=\"4\">Vitamina C<\/button><button type=\"button\" aria-pressed=\"false\" data-c=\"5\">Niacinamida<\/button><\/div>\n  <div class=\"tbl-wrap\"><table class=\"cmp\" id=\"cmp\" data-c=\"3\"><colgroup><col><col class=\"me\"><col><col><col><\/colgroup>\n  <thead><tr><td><\/td><th scope=\"col\">\u00c1cido k\u00f3jico<\/th><th scope=\"col\">Alfa-arbutina<\/th><th scope=\"col\">Vitamina C<\/th><th scope=\"col\">Niacinamida<\/th><\/tr><\/thead><tbody><tr><th scope=\"row\">Fun\u00e7\u00e3o principal<\/th><td>Aclarador da pele, antioxidante<a class=\"ref\" href=\"#src-1\">1<\/a><\/td><td>Aclarador e condicionador da pele<a class=\"ref\" href=\"#src-2\">2<\/a><\/td><td>Luminosidade, prote\u00e7\u00e3o antioxidante<\/td><td>Tom da pele, barreira, brilho<\/td><\/tr><tr><th scope=\"row\">Na f\u00f3rmula<\/th><td>Sens\u00edvel \u00e0 oxida\u00e7\u00e3o, antioxidantes \u00fateis<a class=\"ref\" href=\"#src-10\">10<\/a><\/td><td>A hidroquinona deve manter-se ao n\u00edvel de vest\u00edgios inevit\u00e1veis<a class=\"ref\" href=\"#src-2\">2<\/a><\/td><td>Oxida em contacto com o ar e a luz, exige embalagem protetora<\/td><td>Est\u00e1vel, f\u00e1cil de incorporar na fase aquosa<\/td><\/tr><tr><th scope=\"row\">Regulamenta\u00e7\u00e3o da UE<\/th><td>M\u00e1ximo de 1%, apenas para rosto e m\u00e3os<a class=\"ref\" href=\"#src-2\">2<\/a><\/td><td>2% em creme de rosto, 0.5% em lo\u00e7\u00e3o corporal<a class=\"ref\" href=\"#src-2\">2<\/a><\/td><td>Sem restri\u00e7\u00f5es para o \u00e1cido asc\u00f3rbico<\/td><td>Sem restri\u00e7\u00f5es<\/td><\/tr><tr><th scope=\"row\">A quem se destina<\/th><td>Cuidados para uniformizar o tom da pele do rosto e das m\u00e3os<\/td><td>Cuidados para uniformizar o tom da pele do rosto e do corpo<\/td><td>Pele ba\u00e7a<\/td><td>P\u00fablico em geral, incluindo pele sens\u00edvel<\/td><\/tr><\/tbody><\/table><\/div><\/div><\/section>\n<section class=\"sec\" id=\"faq\" aria-labelledby=\"h-faq\"><div class=\"wrap faq-grid\">\n  <h2 class=\"h2\" id=\"h-faq\">Perguntas frequentes sobre \u00e1cido k\u00f3jico<\/h2><div class=\"faq\"><details open><summary>O que \u00e9 o \u00e1cido k\u00f3jico?<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\">\u00c9 um metabolito produzido por fungos, utilizado em cosm\u00e9tica como aclarador da pele e antioxidante. Inibe a tirosinase, uma enzima da s\u00edntese de melanina<a class=\"ref\" href=\"#src-1\">1<\/a><a class=\"ref\" href=\"#src-9\">9<\/a>.<\/div><\/details><details><summary>Que percentagem de \u00e1cido k\u00f3jico \u00e9 permitida em cosm\u00e9tica?<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\">Desde o Regulamento (UE) 2024\/996, um m\u00e1ximo de 1%, apenas em produtos para o rosto e as m\u00e3os e pelas suas propriedades de aclaramento da pele. Este limite segue o parecer do SCCS de mar\u00e7o de 2022<a class=\"ref\" href=\"#src-2\">2<\/a>. O painel CIR j\u00e1 o considerava seguro at\u00e9 1%<a class=\"ref\" href=\"#src-3\">3<\/a>.<\/div><\/details><details><summary>Quais s\u00e3o os benef\u00edcios do \u00e1cido k\u00f3jico?<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\">Os estudos citados incidem na uniformidade do tom da pele e no aspeto das manchas, quase sempre em combina\u00e7\u00e3o com outros ativos: uma combina\u00e7\u00e3o a 1% apresenta um tom de pele mais uniforme ap\u00f3s 12 semanas<a class=\"ref\" href=\"#src-4\">4<\/a>, e outra um aclaramento progressivo ao longo de 3 meses<a class=\"ref\" href=\"#src-6\">6<\/a>. Uma f\u00f3rmula a 1% aplicada em manchas solares n\u00e3o demonstrou efeito<a class=\"ref\" href=\"#src-5\">5<\/a>.<\/div><\/details><details><summary>O \u00e1cido k\u00f3jico \u00e9 seguro e tem efeitos indesej\u00e1veis?<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\">O painel CIR considera-o seguro at\u00e9 1%, abaixo do n\u00edvel em que surgem sensibiliza\u00e7\u00e3o e aclaramento excessivo<a class=\"ref\" href=\"#src-3\">3<\/a>, e o SCCS validou este limite para o rosto e as m\u00e3os<a class=\"ref\" href=\"#src-2\">2<\/a>. Durante a gravidez, tal como com qualquer cuidado da pele, deve seguir-se o aconselhamento de um profissional de sa\u00fade.<\/div><\/details><details><summary>\u00c9 poss\u00edvel combinar \u00e1cido k\u00f3jico e alfa-arbutina?<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\">Sim, \u00e9 uma combina\u00e7\u00e3o habitual em cuidados para uniformizar o tom da pele. Ambos os ativos s\u00e3o abrangidos pelo Regulamento (UE) 2024\/996: 1% para o \u00e1cido k\u00f3jico, 2% em creme de rosto para a alfa-arbutina<a class=\"ref\" href=\"#src-2\">2<\/a>. A estabilidade da f\u00f3rmula final \u00e9 verificada atrav\u00e9s de testes laboratoriais.<\/div><\/details><details><summary>\u00c9 poss\u00edvel utilizar \u00e1cido k\u00f3jico no corpo?<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\">N\u00e3o num produto corporal: o regulamento limita o \u00e1cido k\u00f3jico a produtos para o rosto e as m\u00e3os<a class=\"ref\" href=\"#src-2\">2<\/a>. Os produtos n\u00e3o conformes deixaram de poder ser disponibilizados no mercado europeu em 1 de novembro de 2025.<\/div><\/details><details><summary>Podem fabricar um creme antimanchas com \u00e1cido k\u00f3jico para a minha marca?<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\">Sim. O nosso laborat\u00f3rio certificado segundo a ISO 22716 disponibiliza 3 f\u00f3rmulas com \u00e1cido k\u00f3jico (s\u00e9rum, creme) que pode personalizar, ou uma f\u00f3rmula \u00e0 medida. A concentra\u00e7\u00e3o e os produtos abrangidos respeitam o Regulamento (UE) 2024\/996. As amostras s\u00e3o gratuitas.<\/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\">Leituras adicionais<\/h2><div class=\"hubs\"><a class=\"chip\" href=\"https:\/\/carmelcosmeticslabs.com\/pt-pt\/glossario-ingredientes-cosmeticos\/\">Gloss\u00e1rio de ingredientes<\/a><a class=\"chip\" href=\"https:\/\/carmelcosmeticslabs.com\/pt-pt\/catalogo-de-cosmeticos-personalizados\/seruns-rosto-marca-branca\/\">S\u00e9runs de rosto de marca branca<\/a><\/div><\/div>\n  <ul class=\"more-list\"><\/ul><\/div><\/section>\n<section class=\"sec sources\" id=\"sources\" aria-labelledby=\"h-s\"><div class=\"wrap\">\n  <h2 class=\"h2\" id=\"h-s\">Fontes<\/h2><p class=\"lede\">Estudos revistos por pares e fontes regulamentares oficiais, consultados em 2 de novembro de 2026.<\/p>\n  <ol class=\"src\"><li id=\"src-1\"><span>Comiss\u00e3o Europeia. <em>CosIng, ficha KOJIC ACID<\/em> (CAS 501-30-4, CE 207-922-4). <a class=\"txt-link\" href=\"https:\/\/ec.europa.eu\/growth\/tools-databases\/cosing\/details\/34801\" target=\"_blank\" rel=\"noopener\">ec.europa.eu\/growth\/tools-databases\/cosing<\/a><\/span><\/li><li id=\"src-2\"><span>Regulamento (UE) 2024\/996 da Comiss\u00e3o, de 3 de abril de 2024, que altera o Regulamento (CE) n.\u00ba 1223\/2009 (vitamina A, alfa-arbutina, arbutina e outras subst\u00e2ncias): anexo III, entradas 375 (\u00e1cido k\u00f3jico) e 377 (alfa-arbutina). <a class=\"txt-link\" href=\"https:\/\/eur-lex.europa.eu\/eli\/reg\/2024\/996\/oj\" target=\"_blank\" rel=\"noopener\">eur-lex.europa.eu<\/a><\/span><\/li><li id=\"src-3\"><span>Burnett CL, Bergfeld WF, Belsito DV, et al. <em>Final report of the safety assessment of kojic acid as used in cosmetics.<\/em> Int J Toxicol. 2010;29(6 Suppl):244S-273S. <a class=\"txt-link\" href=\"https:\/\/doi.org\/10.1177\/1091581810385956\" target=\"_blank\" rel=\"noopener\">doi:10.1177\/1091581810385956<\/a><\/span><\/li><li id=\"src-4\"><span>Desai S, Ayres E, Bak H, et al. <em>Effect of a tranexamic acid, kojic acid, and niacinamide containing serum on facial dyschromia: a clinical evaluation.<\/em> J Drugs Dermatol. 2019;18(5):454-459. <a class=\"txt-link\" href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/31141852\/\" target=\"_blank\" rel=\"noopener\">PMID 31141852<\/a><\/span><\/li><li id=\"src-5\"><span>Hermanns JF, Petit L, Pi\u00e9rard-Franchimont C, et al. <em>Assessment of topical hypopigmenting agents on solar lentigines of Asian women.<\/em> Dermatology. 2002;204(4):281-286. <a class=\"txt-link\" href=\"https:\/\/doi.org\/10.1159\/000063359\" target=\"_blank\" rel=\"noopener\">doi:10.1159\/000063359<\/a><\/span><\/li><li id=\"src-6\"><span>Pi\u00e9rard GE, Seit\u00e9 S, Rougier A, Quatresooz P. <em>Analytic assessment under ultraviolet light of actinic lentigines under bleaching treatment.<\/em> J Cosmet Dermatol. 2011;10(2):104-109. <a class=\"txt-link\" href=\"https:\/\/doi.org\/10.1111\/j.1473-2165.2011.00551.x\" target=\"_blank\" rel=\"noopener\">doi:10.1111\/j.1473-2165.2011.00551.x<\/a><\/span><\/li><li id=\"src-7\"><span>Muller B, Flament F, Jouni H, et al. <em>A Bayesian network meta-analysis of 14 molecules inhibiting UV daylight-induced pigmentation.<\/em> J Eur Acad Dermatol Venereol. 2024;38(8):1566-1574. <a class=\"txt-link\" href=\"https:\/\/doi.org\/10.1111\/jdv.19910\" target=\"_blank\" rel=\"noopener\">doi:10.1111\/jdv.19910<\/a><span class=\"tag\">L&#x27;Or\u00e9al<\/span><\/span><\/li><li id=\"src-8\"><span>Zilles JC, Dos Santos FL, Kulkamp-Guerreiro IC, Contri RV. <em>Biological activities and safety data of kojic acid and its derivatives: a review.<\/em> Exp Dermatol. 2022;31(10):1500-1521. <a class=\"txt-link\" href=\"https:\/\/doi.org\/10.1111\/exd.14662\" target=\"_blank\" rel=\"noopener\">doi:10.1111\/exd.14662<\/a><\/span><\/li><li id=\"src-9\"><span>Saeedi M, Eslamifar M, Khezri K. <em>Kojic acid applications in cosmetic and pharmaceutical preparations.<\/em> Biomed Pharmacother. 2019;110:582-593. <a class=\"txt-link\" href=\"https:\/\/doi.org\/10.1016\/j.biopha.2018.12.006\" target=\"_blank\" rel=\"noopener\">doi:10.1016\/j.biopha.2018.12.006<\/a><\/span><\/li><li id=\"src-10\"><span>Khadivi Y, Shakeri S, Arjmandmazidi S, et al. <em>The effect of emulgel preparation on the stability of kojic acid in the topical anti-hyperpigmentation products.<\/em> J Cosmet Dermatol. 2024;23(6):2145-2155. <a class=\"txt-link\" href=\"https:\/\/doi.org\/10.1111\/jocd.16254\" target=\"_blank\" rel=\"noopener\">doi:10.1111\/jocd.16254<\/a><\/span><\/li><li id=\"src-11\"><span>Tazesh S, Tamizi E, Siahi Shadbad M, et al. <em>Comparative stability of two anti-hyperpigmentation agents: kojic acid as a natural metabolite and its di-palmitate ester, under oxidative stress; application to pharmaceutical formulation design.<\/em> Adv Pharm Bull. 2022;12(2):329-335. <a class=\"txt-link\" href=\"https:\/\/doi.org\/10.34172\/apb.2022.031\" target=\"_blank\" rel=\"noopener\">doi:10.34172\/apb.2022.031<\/a><\/span><\/li><\/ol><\/div><\/section>\n\n<div class=\"fab\" id=\"fab\"><a class=\"btn\" href=\"#consultation\">Criar um produto com \u00e1cido k\u00f3jico <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\">Todas as fontes<\/a><button class=\"pop-x\" type=\"button\" id=\"pop-x\">Fechar<\/button><\/div><\/div>\n<\/div>\n<script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@graph\": [{\"@type\": \"WebPage\", \"@id\": \"https:\/\/carmelcosmeticslabs.com\/pt-pt\/glossario-ingredientes-cosmeticos\/acido-kojico\/#webpage\", \"url\": \"https:\/\/carmelcosmeticslabs.com\/pt-pt\/glossario-ingredientes-cosmeticos\/acido-kojico\/\", \"name\": \"\u00c1cido k\u00f3jico: benef\u00edcios e limite de 1% na UE\", \"inLanguage\": \"pt-PT\", \"datePublished\": \"2026-11-02\", \"dateModified\": \"2026-11-02\", \"author\": {\"@type\": \"Person\", \"name\": \"Mohamed El Hjouji\", \"jobTitle\": \"Fundador e diretor executivo\", \"worksFor\": {\"@type\": \"Organization\", \"name\": \"Carmel Cosmetics Labs\", \"url\": \"https:\/\/carmelcosmeticslabs.com\/\"}}, \"about\": {\"@type\": \"ChemicalSubstance\", \"name\": \"\u00c1cido k\u00f3jico\", \"alternateName\": [\"\u00c1cido k\u00f3jico\", \"5-hidroxi-2-(hidroximetil)-4H-piran-4-ona\"], \"identifier\": \"CAS 501-30-4\"}, \"mainEntity\": {\"@id\": 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\"description\": \"Metabolito de origem f\u00fangica utilizado em cosm\u00e9tica como ativo aclarador da pele e antioxidante, limitado a 1% em produtos para o rosto e as m\u00e3os pelo Regulamento (UE) 2024\/996.\", \"inDefinedTermSet\": {\"@type\": \"DefinedTermSet\", \"name\": \"Gloss\u00e1rio de ingredientes cosm\u00e9ticos\", \"url\": \"https:\/\/carmelcosmeticslabs.com\/pt-pt\/glossario-ingredientes-cosmeticos\/\"}}, {\"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"O que \u00e9 o \u00e1cido k\u00f3jico?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"\u00c9 um metabolito produzido por fungos, utilizado em cosm\u00e9tica como aclarador da pele e antioxidante. Inibe a tirosinase, uma enzima da s\u00edntese de melanina.\"}}, {\"@type\": \"Question\", \"name\": \"Que percentagem de \u00e1cido k\u00f3jico \u00e9 permitida em cosm\u00e9tica?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Desde o Regulamento (UE) 2024\/996, um m\u00e1ximo de 1%, apenas em produtos para o rosto e as m\u00e3os e pelas suas propriedades de aclaramento da pele. Este limite segue o parecer do SCCS de mar\u00e7o de 2022. O painel CIR j\u00e1 o considerava seguro at\u00e9 1%.\"}}, {\"@type\": \"Question\", \"name\": \"Quais s\u00e3o os benef\u00edcios do \u00e1cido k\u00f3jico?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Os estudos citados incidem na uniformidade do tom da pele e no aspeto das manchas, quase sempre em combina\u00e7\u00e3o com outros ativos: uma combina\u00e7\u00e3o a 1% apresenta um tom de pele mais uniforme ap\u00f3s 12 semanas, e outra um aclaramento progressivo ao longo de 3 meses. Uma f\u00f3rmula a 1% aplicada em manchas solares n\u00e3o demonstrou efeito.\"}}, {\"@type\": \"Question\", \"name\": \"O \u00e1cido k\u00f3jico \u00e9 seguro e tem efeitos indesej\u00e1veis?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"O painel CIR considera-o seguro at\u00e9 1%, abaixo do n\u00edvel em que surgem sensibiliza\u00e7\u00e3o e aclaramento excessivo, e o SCCS validou este limite para o rosto e as m\u00e3os. Durante a gravidez, tal como com qualquer cuidado da pele, deve seguir-se o aconselhamento de um profissional de sa\u00fade.\"}}, {\"@type\": \"Question\", \"name\": \"\u00c9 poss\u00edvel combinar \u00e1cido k\u00f3jico e alfa-arbutina?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Sim, \u00e9 uma combina\u00e7\u00e3o habitual em cuidados para uniformizar o tom da pele. Ambos os ativos s\u00e3o abrangidos pelo Regulamento (UE) 2024\/996: 1% para o \u00e1cido k\u00f3jico, 2% em creme de rosto para a alfa-arbutina. A estabilidade da f\u00f3rmula final \u00e9 verificada atrav\u00e9s de testes laboratoriais.\"}}, {\"@type\": \"Question\", \"name\": \"\u00c9 poss\u00edvel utilizar \u00e1cido k\u00f3jico no corpo?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"N\u00e3o num produto corporal: o regulamento limita o \u00e1cido k\u00f3jico a produtos para o rosto e as m\u00e3os. Os produtos n\u00e3o conformes deixaram de poder ser disponibilizados no mercado europeu em 1 de novembro de 2025.\"}}, {\"@type\": \"Question\", \"name\": \"Podem fabricar um creme antimanchas com \u00e1cido k\u00f3jico para a minha marca?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Sim. O nosso laborat\u00f3rio certificado segundo a ISO 22716 disponibiliza 3 f\u00f3rmulas com \u00e1cido k\u00f3jico (s\u00e9rum, creme) que pode personalizar, ou uma f\u00f3rmula \u00e0 medida. A concentra\u00e7\u00e3o e os produtos abrangidos respeitam o Regulamento (UE) 2024\/996. 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.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=\"Especialista de produto da Carmel Cosmetics Labs com uma fundadora de marca\" width=\"768\" height=\"953\" loading=\"lazy\" decoding=\"async\" title=\"| Carmel Cosmetics Labs\"><div><h2>Fale-nos do seu projeto<\/h2><p>Um especialista de produto analisa o seu pedido e contacta-o pelo canal da sua prefer\u00eancia.<\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5f0865c dv-form eael-wpforms-labels-yes eael-wpforms-form-button-custom elementor-widget elementor-widget-eael-wpforms\" data-id=\"5f0865c\" 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-52945\"><form id=\"wpforms-form-52945\" class=\"wpforms-validate wpforms-form wpforms-ajax-form\" data-formid=\"52945\" method=\"post\" enctype=\"multipart\/form-data\" action=\"\/pt-pt\/wp-json\/wp\/v2\/pages\/62071\" data-token=\"8ed2d31dd0b35b291025383df9d17ecc\" data-token-time=\"1794439941\"><div class=\"wpforms-head-container\"><div class=\"wpforms-title\">Lead PT \u2013 Demande de devis<\/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-52945-field_0-container\" class=\"wpforms-field wpforms-field-name\" data-field-type=\"name\" data-field-id=\"0\"><fieldset><legend class=\"wpforms-field-label wpforms-label-hide\" aria-hidden=\"false\">Nome <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-52945-field_0\" class=\"wpforms-field-name-first wpforms-field-required\" name=\"wpforms[fields][0][first]\" placeholder=\"Nome pr\u00f3prio\" aria-errormessage=\"wpforms-52945-field_0-error\" required><label for=\"wpforms-52945-field_0\" 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-52945-field_0-last\" class=\"wpforms-field-name-last wpforms-field-required\" name=\"wpforms[fields][0][last]\" placeholder=\"Apelido\" aria-errormessage=\"wpforms-52945-field_0-last-error\" required><label for=\"wpforms-52945-field_0-last\" class=\"wpforms-field-sublabel after wpforms-sublabel-hide\">Nom<\/label><\/div><\/div><\/fieldset><\/div><div id=\"wpforms-52945-field_1-container\" class=\"wpforms-field wpforms-field-email\" data-field-type=\"email\" data-field-id=\"1\"><label class=\"wpforms-field-label wpforms-label-hide\" for=\"wpforms-52945-field_1\" aria-hidden=\"false\">E-mail <span class=\"wpforms-required-label\" aria-hidden=\"true\">*<\/span><\/label><input type=\"email\" id=\"wpforms-52945-field_1\" class=\"wpforms-field-large wpforms-field-required\" name=\"wpforms[fields][1]\" placeholder=\"O seu e-mail\" spellcheck=\"false\" aria-errormessage=\"wpforms-52945-field_1-error\" required><\/div><div id=\"wpforms-52945-field_3-container\" class=\"wpforms-field wpforms-field-phone\" data-field-type=\"phone\" data-field-id=\"3\"><label class=\"wpforms-field-label wpforms-label-hide\" for=\"wpforms-52945-field_3\" aria-hidden=\"false\">Telefone <span class=\"wpforms-required-label\" aria-hidden=\"true\">*<\/span><\/label><input type=\"tel\" id=\"wpforms-52945-field_3\" class=\"wpforms-field-large wpforms-field-required wpforms-smart-phone-field\" data-rule-smart-phone-field=\"true\" name=\"wpforms[fields][3]\" placeholder=\"O seu telefone\" aria-label=\"Telefone\" aria-errormessage=\"wpforms-52945-field_3-error\" required><\/div><div id=\"wpforms-52945-field_4-container\" class=\"wpforms-field wpforms-field-select wpforms-field-select-style-modern\" data-field-type=\"select\" data-field-id=\"4\"><label class=\"wpforms-field-label\" for=\"wpforms-52945-field_4\">Meio de contacto preferido <span class=\"wpforms-required-label\" aria-hidden=\"true\">*<\/span><\/label><select id=\"wpforms-52945-field_4\" class=\"wpforms-field-large wpforms-field-required choicesjs-select\" data-size-class=\"wpforms-field-row wpforms-field-large\" data-search-enabled=\"\" name=\"wpforms[fields][4]\" required=\"required\"><option value=\"\" class=\"placeholder\" disabled  selected='selected'>Escolha o seu meio de contacto preferido<\/option><option value=\"WhatsApp\"  class=\"choice-1 depth-1\"  >WhatsApp<\/option><option value=\"E-mail\"  class=\"choice-2 depth-1\"  >E-mail<\/option><option value=\"Chamada telef\u00f3nica\"  class=\"choice-3 depth-1\"  >Chamada telef\u00f3nica<\/option><\/select><\/div><div id=\"wpforms-52945-field_2-container\" class=\"wpforms-field wpforms-field-textarea\" data-field-type=\"textarea\" data-field-id=\"2\"><label class=\"wpforms-field-label\" for=\"wpforms-52945-field_2\">Descreva brevemente o seu projeto: <span class=\"wpforms-required-label\" aria-hidden=\"true\">*<\/span><\/label><textarea id=\"wpforms-52945-field_2\" class=\"wpforms-field-medium wpforms-field-required\" name=\"wpforms[fields][2]\" placeholder=\"Contexto do projeto, tipo de produtos, data prevista de lan\u00e7amento, mercado(s) de destino, etc.\" aria-errormessage=\"wpforms-52945-field_2-error\" required><\/textarea><\/div><div id=\"wpforms-52945-field_5-container\" class=\"wpforms-field wpforms-field-hidden ccl-utm_source\" data-field-type=\"hidden\" data-field-id=\"5\"><input type=\"hidden\" id=\"wpforms-52945-field_5\" name=\"wpforms[fields][5]\"><\/div><div id=\"wpforms-52945-field_6-container\" class=\"wpforms-field wpforms-field-hidden ccl-utm_medium\" data-field-type=\"hidden\" data-field-id=\"6\"><input type=\"hidden\" id=\"wpforms-52945-field_6\" name=\"wpforms[fields][6]\"><\/div><div id=\"wpforms-52945-field_7-container\" class=\"wpforms-field wpforms-field-hidden ccl-utm_campaign\" data-field-type=\"hidden\" data-field-id=\"7\"><input type=\"hidden\" id=\"wpforms-52945-field_7\" name=\"wpforms[fields][7]\"><\/div><div id=\"wpforms-52945-field_8-container\" class=\"wpforms-field wpforms-field-hidden ccl-utm_term\" data-field-type=\"hidden\" data-field-id=\"8\"><input type=\"hidden\" id=\"wpforms-52945-field_8\" name=\"wpforms[fields][8]\"><\/div><div id=\"wpforms-52945-field_9-container\" class=\"wpforms-field wpforms-field-hidden ccl-utm_content\" data-field-type=\"hidden\" data-field-id=\"9\"><input type=\"hidden\" id=\"wpforms-52945-field_9\" name=\"wpforms[fields][9]\"><\/div><div id=\"wpforms-52945-field_10-container\" class=\"wpforms-field wpforms-field-hidden ccl-gclid\" data-field-type=\"hidden\" data-field-id=\"10\"><input type=\"hidden\" id=\"wpforms-52945-field_10\" name=\"wpforms[fields][10]\"><\/div><div id=\"wpforms-52945-field_11-container\" class=\"wpforms-field wpforms-field-hidden ccl-gbraid\" data-field-type=\"hidden\" data-field-id=\"11\"><input type=\"hidden\" id=\"wpforms-52945-field_11\" name=\"wpforms[fields][11]\"><\/div><div id=\"wpforms-52945-field_12-container\" class=\"wpforms-field wpforms-field-hidden ccl-wbraid\" data-field-type=\"hidden\" data-field-id=\"12\"><input type=\"hidden\" id=\"wpforms-52945-field_12\" name=\"wpforms[fields][12]\"><\/div><div id=\"wpforms-52945-field_13-container\" class=\"wpforms-field wpforms-field-hidden ccl-fbclid\" data-field-type=\"hidden\" data-field-id=\"13\"><input type=\"hidden\" id=\"wpforms-52945-field_13\" name=\"wpforms[fields][13]\"><\/div><div id=\"wpforms-52945-field_14-container\" class=\"wpforms-field wpforms-field-hidden ccl-landing\" data-field-type=\"hidden\" data-field-id=\"14\"><input type=\"hidden\" id=\"wpforms-52945-field_14\" name=\"wpforms[fields][14]\"><\/div><div id=\"wpforms-52945-field_15-container\" class=\"wpforms-field wpforms-field-hidden ccl-referrer\" data-field-type=\"hidden\" data-field-id=\"15\"><input type=\"hidden\" id=\"wpforms-52945-field_15\" name=\"wpforms[fields][15]\"><\/div><div id=\"wpforms-52945-field_16-container\" class=\"wpforms-field wpforms-field-hidden ccl-first_touch\" data-field-type=\"hidden\" data-field-id=\"16\"><input type=\"hidden\" id=\"wpforms-52945-field_16\" name=\"wpforms[fields][16]\"><\/div><div id=\"wpforms-52945-field_17-container\" class=\"wpforms-field wpforms-field-hidden ccl-canal\" data-field-type=\"hidden\" data-field-id=\"17\"><input type=\"hidden\" id=\"wpforms-52945-field_17\" name=\"wpforms[fields][17]\"><\/div><div id=\"wpforms-52945-field_18-container\" class=\"wpforms-field wpforms-field-hidden ccl-campagne\" data-field-type=\"hidden\" data-field-id=\"18\"><input type=\"hidden\" id=\"wpforms-52945-field_18\" name=\"wpforms[fields][18]\"><\/div><\/div><!-- .wpforms-field-container --><div class=\"wpforms-submit-container\" ><input type=\"hidden\" name=\"wpforms[id]\" value=\"52945\"><input type=\"hidden\" name=\"wpforms[time_token]\" value=\"1794439941.d48a86f651ede38ada5f0baffb20bfdcfe284260ff18698588cd3a429cc63edd\"><input type=\"hidden\" name=\"page_title\" value=\"\"><input type=\"hidden\" name=\"page_url\" value=\"https:\/\/carmelcosmeticslabs.com\/pt-pt\/wp-json\/wp\/v2\/pages\/62071\"><input type=\"hidden\" name=\"url_referer\" value=\"\"><button type=\"submit\" name=\"wpforms[submit]\" id=\"wpforms-submit-52945\" class=\"wpforms-submit\" data-alt-text=\"A enviar\u2026\" data-submit-text=\"Consulta gratuita\" aria-live=\"assertive\" value=\"wpforms-submit\">Consulta gratuita<\/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-7a233da elementor-widget elementor-widget-html\" data-id=\"7a233da\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<p class=\"dv-reassure\"><svg 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As suas informa\u00e7\u00f5es s\u00e3o confidenciais e servem apenas para preparar o seu or\u00e7amento.<\/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>\u00c1cido k\u00f3jico em cosm\u00e9tica: INCI, limite de 1% para rosto e m\u00e3os no Regulamento (UE) 2024\/996, estudos, estabilidade e 3 f\u00f3rmulas de marca branca.<\/p>\n","protected":false},"author":3,"featured_media":54452,"parent":20227,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-62071","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/carmelcosmeticslabs.com\/pt-pt\/wp-json\/wp\/v2\/pages\/62071","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/carmelcosmeticslabs.com\/pt-pt\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/carmelcosmeticslabs.com\/pt-pt\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/carmelcosmeticslabs.com\/pt-pt\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/carmelcosmeticslabs.com\/pt-pt\/wp-json\/wp\/v2\/comments?post=62071"}],"version-history":[{"count":2,"href":"https:\/\/carmelcosmeticslabs.com\/pt-pt\/wp-json\/wp\/v2\/pages\/62071\/revisions"}],"predecessor-version":[{"id":62073,"href":"https:\/\/carmelcosmeticslabs.com\/pt-pt\/wp-json\/wp\/v2\/pages\/62071\/revisions\/62073"}],"up":[{"embeddable":true,"href":"https:\/\/carmelcosmeticslabs.com\/pt-pt\/wp-json\/wp\/v2\/pages\/20227"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/carmelcosmeticslabs.com\/pt-pt\/wp-json\/wp\/v2\/media\/54452"}],"wp:attachment":[{"href":"https:\/\/carmelcosmeticslabs.com\/pt-pt\/wp-json\/wp\/v2\/media?parent=62071"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}