Patent ID: 8361991

Claim:
A method for cosmetic moisturization of the skin comprising applying to the skin a compound of formula (I): wherein (i) R 1 and R 2 represent, independently of one another, a hydrogen atom, or a saturated C 1 -C 6 or unsaturated C 2 -C 6 linear alkyl group or saturated or unsaturated C 3 -C 6 branched alkyl group, optionally substituted with one or more groups, which may be identical or different, selected from the group consisting of —OR 5 , —SiMe 3 , —CO 2 R 6 and —F; or (ii) R 1 and R 2 can form, together with the nitrogen atom which bears them, a saturated heterocycle with 5 to 7 ring members, and optionally comprising another heteroatom chosen from sulphur and oxygen, this heterocycle being optionally substituted with 1 to 3 linear C 1 -C 4 or branched C 3 -C 4 alkyl group(s) optionally substituted with one or more OH groups; R 5 representing a hydrogen atom, or a linear C 1 -C 3 or branched C 3 saturated, or C 2 -C 3 unsaturated alkyl group; R 6 representing a hydrogen atom or a linear C 1 -C 4 or branched C 3 -C 4 saturated alkyl group; R 3 represents a hydrogen atom or a linear C 1 -C 6 saturated alkyl group, or —OR 3 represents a phosphate group; it being possible for the two groups R 3 to form, together, an isopropylidene group; R 4 represents a hydrogen atom or —OR 4 represents a phosphate group; and the salts, isomers and solvates thereof.