PROBLEM TO BE SOLVED: To provide an antimicrobial agent which is effective for preventing and improving acne and treating and preventing dermatologic therapy such as atopic dematitis.SOLUTION: The antimicrobial agent comprises a fatty acid derivative represented by general formula (1) (wherein, X denotes a 2 to 14C alkyl group and y denotes an integer of 5 to 15) or its salt as an active constituent.COPYRIGHT: (C)2012,JPO&INPIT【課題】ニキビの予防・改善、アトピー性皮膚炎等の皮膚疾患の治療・予防に有用な抗菌剤の提供。【解決手段】下記の一般式(1):〔式中、Xは炭素数2~14のアルキル基を示し、yは5~15の整数を示す。〕で表される脂肪酸誘導体又はその塩を有効成分とする抗菌剤。【選択図】なし
