Patent ID: 7999008

Claim:
A method for treatment of skin suffering from ichthyosis, comprising: stimulating natural desquamation of the skin suffering from ichthyosis by: applying to the skin suffering from ichthyosis a composition, comprising: a physiologically acceptable medium and a desquamation effective amount of at least one compound of the following formula (I) wherein R 1 , R 2 , R 3 and R 4 each represent, independently of each other, a hydrogen atom, a C 1 -C 4 alkyl group or a C 2 -C 6 hydroxyalkyl group which may contain from 1 to 5 hydroxyl groups, where at least one of the radicals R 1 to R 4 represents a C 2 -C 6 hydroxyalkyl group, their salts, their solvates, and mixtures thereof; wherein the desquamation effective amount of the compound of formula (I) is from 1M to 4M, and is effective for stimulating the acid protease proteolytic activities of the stratum corneum.