The composition comprises a 2-acetaminoalkane-1, 3-diol or its optical isomer having the formula:
in which R1 signifies a linear alkyl group having 9 to 17 carbon atoms;
a 2-acylaminoalkane-1, 3-diol or its optical isomer having the formula:
in which R1 has the same meaning as mentioned above and R2 signifies a linear acyl group having 14 to 24 carbon atoms;
as well as cholesterol, and optionally a compound chosen from the group consisting of a cholesterol derivative, a fatty acid and a derivative thereof. This composition forms a lamellar liquid crystal phase which can retain moisture. When the composition is applied to a human skin or scalp, it prevents the skin and scalp from drying-out or deterioration. The composition can thus be used as a cosmetic or pharmaceutical product.
组合物包括 2-乙酰
氨基烷-1,3
-二醇或其光学异构体,其式如下
其中 R1 表示具有 9 至 17 个碳原子的直链烷基;
2-乙酰
氨基烷-1,3
-二醇或其光学异构体,其式如下
其中 R1 与上述含义相同,R2 表示具有 14 至 24 个碳原子的直链酰基;
胆固醇,以及可选的
胆固醇衍
生物、
脂肪酸及其衍
生物组成的化合物。这种组合物形成的片状液晶相可以保持
水分。将该组合物涂在人的皮肤或头皮上,可防止皮肤和头皮干燥或变质。因此,该组合物可用作化妆品或药品。