Use of agent comprising precursor of ceramide based 6-hydroxy-4-sphingenine, or ascorbic acid analogues, allowing the increase of ceramide content in the lips, as protective agent for fragile lips, preferably the vermilion zone

摘要

Use of a cosmetic agent (I) allowing the increase of ceramide content in the lips, as protective agent of the fragile lips, preferably vermilion zone, is claimed, where (I) is precursor of ceramide based 6-hydroxy-4-sphingenine; or ascorbic acid or at least one of its analogues. An independent claim is included for a composition for labial application comprising in a medium, at least two ceramide based 6-hydroxy-4-sphingenine compounds of formula (R 1-CHOH-CH(NH-COR 2)(CH 2OH)) (a). R 13-30C (preferably 15C) alkyl or alkenyl; and R 2H or 3-30C (preferably 15-19C) linear hydrocarbon optionally hydroxylated radical, where the hydroxyl group is at alpha position to carbonyl, and optionally comprises one or more ethylene non-saturations, preferably one or two ethylene non-saturations.