Retinol and Retinyl Ester Epidermal Pools Are Not Identically Sensitive to UVB Irradiation and Anti-Oxidant Protective Effect

Abstract

Vitamin A storage in the epidermis comprises two forms, ROL and RE, that do not show similar sensitivity to acute UVB exposure. ROL stores comprise a UVB-resistant (possibly by CRBP) portion and a UVB-sensitive portion that can be protected by anti-oxidants. RE stores do not show such a pattern.