Skin care

文件类型：PDF文档
文件大小：1021K
PROBLEM TO BE SOLVED : To provide a skin care preparation suitable as a cosmetic (including quasi medicine), etc.SOLUTION : The skin care preparation comprises an acyl derivative of serine and a compound represented by the general formula [wherein Ris an unsubstituted or substituent-containing aromatic group or hydrogen atom; Rand Rare each independently an unsubstituted or substituent-containing aromatic group; X is a nitrogen atom or oxygen atom; Rand Rare each present in the number depending on X and are each independently 1-6C alkyl in which a hydrogen atom or carbon atom may be substituted with a heteroatom or hydrogen atom].