Is there a term from the field of dermatology and cosmetics that you do not understand? Would you like to know what it means? View the full definition from the La Roche-Posay glossary.

open menu
Back to the list of terms «R »


Retinol is the active form of vitamin A. A powerful antioxidant, it helps fight aging. Retinol also plays an important role in protecting the skin from external aggressors. In its natural state, vitamin A is found in butter, egg yolks, and cod liver oil.