A composition comprising a 2-acetaminoalkane-1,3-diol or its optical isomer having the formula: ##STR1## wherein R.sub.1 represents a linear alkyl group having 9 to 17 carbon atoms; a 2-acylaminoalkane-1,3-diol or its optical isomer having the formula: ##STR2## wherein R.sub.1 has the same meaning as given above for formula (I) and R.sub.2 represents a substituted or unsubstituted linear acyl group having 14 to 24 carbon atoms; and a compound having a sterol group. This composition forms a lamellar liquid crystal phase and can retain moisture when applied to the skin.
一种组合物,包括具有以下式子的2-乙酰
氨基烷基-1,3
-二醇或其光学异构体:##STR1## 其中R.sub.1代表具有9至17个碳原子的线性烷基基团;2-酰
氨基烷基-1,3
-二醇或其光学异构体,具有以下式子:##STR2## 其中R.sub.1具有与式(I)中上述给出的相同含义,R.sub.2代表具有14至24个碳原子的取代或未取代的线性酰基基团;以及具有类
固醇基团的化合物。该组合物形成层状液晶相,并在涂抹于皮肤时能保持湿润。