The present invention relates to the cosmetic use, in a composition containing a physiologically acceptable medium, of at least one compound of formula (I) in which: - R3 means a hydrogen atom or a hydroxyl radical, - R1 and R2 mean, independently of each other, a hydrogen atom, a linear or branched C1-C6 alkyl radical； a benzyl radical； a linear or branched C1-C6 alkylcarbonyl radical not conjugated with the carbonyl； or a linear or branched C1-C6 alkoxycarbonyl radical, and/or of an isomer and/or of a salt and/or of a solvate of said compound of formula (1), for preventing and/or treating the signs of ageing of the skin and its appendages.
