Oleanolic acid

Oleanolic acid (CAS 508-02-1, EC 208-081-6, C30H48O3), also known as oleanic acid and caryophyllin, is a naturally occurring pentacyclic triterpenoid found in olive oil processing residues and numerous plant sources. It carries no assigned E-code and is classified under organic acids.

In personal care formulations, oleanolic acid functions as a skin conditioner and protectant by reinforcing the lipid barrier and modulating sebum production, making it relevant in anti-aging and sebum-control products. It also serves as a heat stabilizer in polymer processing, where its antioxidant activity interrupts oxidative chain reactions at elevated temperatures.

Oleanolic acid is supplied in solid form and sourced to cosmetic and pharmaceutical grades, with compliance documentation available for REACH registration. Procurement teams should confirm grade suitability against Ph.Eur. or internal specifications. It is classified under HS code 29181990 for import and export purposes.