PROBLEM TO BE SOLVED: To provide a parakeratosis inhibitor, a pore shrinking agent, and an agent for preventing and improving rough skin which have a compound having an excellent effect and no problem of safety such as sensory irritation and a skin external composition comprising such a compound.SOLUTION: The skin external composition comprises a compound selected from a glutamic acid derivative of formula (2) and its salt. The compound has an excellent effect as a parakeratosis inhibitor, a pore shrinking agent, and an agent for preventing and improving rough skin.COPYRIGHT: (C)2010,JPO&INPIT【課題】優れた効果を有し、感覚刺激等の安全性上の問題がない化合物を有効成分とする不全角化抑制剤、毛穴縮小剤、肌荒れ防止・改善剤、ならびにこのような化合物を配合した皮膚外用組成物を提供する。【解決手段】下記一般式(2)のグルタミン酸誘導体及びそれらの塩から選ばれる化合物を含有する皮膚外用組成物。該化合物は、不全角化抑制剤、毛穴縮小剤及び肌荒れ防止・改善剤として優れた効果を有する。【選択図】図1
