A composition for topical application to the skin comprises, in an appropriate cosmetic vehicle, as an active agent, a compound of the formula ##STR1## wherein, R.sub.1 and R.sub.2 represent hydrogen or lower alkyl; R.sub.3 represents hydrogen, alkyl containing 1-4 carbon atoms, mono- or polyhydroxyalkyl having 2-16 carbon atoms, carbamylalkyl, carboxyalkyl or alkoxycarbonylalkyl; R.sub.4 represents hydrogen or --COOR.sub.5 represents hydrogen, alkyl having 1-18 carbon atoms optionally interrupted by one or more hetero atoms, or mono- or polyhydroxyalkyl having 2-18 carbon atoms; and n is 0 or 1. This composition improves the elasticity and suppleness of the skin.
一种用于皮肤局部涂抹的组合物包括,作为活性剂,在适当的化妆品载体中,具有以下结构的化合物:
其中,R.sub.1和R.sub.2代表氢或较低的烷基;R.sub.3代表氢、含有1-4个碳原子的烷基、具有2-16个碳原子的
单糖或
多糖基烷基、
氨基
甲烷基、羧基烷基或氧代羰基烷基;R.sub.4代表氢或--COOR.sub.5代表氢、含有1-18个碳原子的烷基,可选地由一个或多个杂原子中断,或具有2-18个碳原子的
单糖或
多糖基烷基;n为0或1。这种组合物可以提高皮肤的弹性和柔软度。