| abstract |
A compound of structure (1), where R1 representes H- or acyl, R2 represents H- or -CH¿3, R?3 represents H-, alkyl, other hydrocarbyl or a metallic, ammonium or alkanolammonium counterion, m is an integer of from 1 to 5, and R1 is acyl unless R3 is alkyl, is used in a cosmetic composition for topical application to the skin. The compound penetrates into the epidermis and is hydrolysed by esterases therein to form the corresponding glycolate or lactate of structure (2), where X represents -H or a counterion; which thereby serves as a moisturiser for the skin. Preferred compositions include an oil and/or organic solvent as well as water, and penetration of the compound of structure (1) may be achieved even when present at low concentration. |