Signs of aging of the skin and/or mucous membranes are prevented and/or reduced, and the activity of the proteolytic enzymes of the stratum corneum are stimulated as well, by administering to an individual in need of such treatment, a cosmetic/pharmaceutical composition which comprises a thus effective amount of at least one hydroxylated urea compound having the following formula (I):
in which:
the radicals R1, R2, R3 and R4, which may be identical or different, are each a hydrogen atom, a C
1
-C
4
alkyl radical or a C
2
-C
6
hydroxyalkyl radical which can contain from 1 to 5 hydroxyl groups, wherein at least one of the R1 to R4 radicals represents a hydroxyalkyl radical, or salt, solvate or isomer thereof, formulated into a physiologically acceptable medium therefor.
通过向需要此类治疗的个体施用一种化妆品/药物组合物,可预防和/或减少皮肤和/或粘膜的老化迹象,并刺激角质层蛋白
水解酶的活性,该组合物包含有效量的至少一种具有下式(I)的羟基
脲化合物:
其中
基团 R1、R2、R3 和 R4(可以相同或不同)分别是氢原子、C
1
-C
4
烷基或 C
2
-C
6
羟烷基,其中 R1 至 R4 自由基中至少有一个代表羟烷基,或其盐、溶液或异构体,配制成生理上可接受的介质。