申请人:Charles of the Ritz Group Ltd.
公开号:US04452989A1
公开(公告)日:1984-06-05
Derivatives of 2-pyrrolidone-5-carboxylic acid having excellent moisturizing properties are provided which have the structure ##STR1## wherein R.sub.1 and R.sub.2 are the same or different and are lower alkyl and aralkyl and n is 1 to 8 and including cationic salts thereof such as the pyrrolidone carboxylic acid salt thereof. These compounds are useful as moisturizing agents. Cosmetics, shampoos, hair conditioners and skin toners containing such compounds are also provided.
提供具有出色保湿特性的2-吡咯烷酮-5-羧酸衍生物,其结构为##STR1##其中R.sub.1和R.sub.2相同或不同,为较低的烷基和芳基烷基,n为1至8,包括其阳离子盐,如吡咯烷酮羧酸盐。这些化合物可用作保湿剂。还提供了含有这些化合物的化妆品、洗发水、护发素和皮肤爽肤水。