Little toxicity data
Review2023 review
The review of in vitro and in vivo studies concludes that the toxic effects of copaiba oils and their constituents are poorly known, despite their traditional use9.
No DNA damage in mice
LaboratorySwiss miceComet and micronucleus tests500 to 2,000 mg/kg by gavage
The oleoresin and its volatile and resinous fractions increase neither DNA damage nor micronuclei. This test covers genotoxicity after ingestion: it says nothing about skin tolerance10.
β-caryophyllene is volatile and oxidizes
Review2025 review
The main constituent oxidizes to β-caryophyllene oxide: the authors recommend adding antioxidants, working at low oxygen levels and protecting the product through packaging11. In mice, repeated applications of β-caryophyllene at 10 mg/mL cause itching, thickening of the epidermis and a rise in IgE: the sensitizing potential deserves attention12.