PROBLEM TO BE SOLVED: To provide a skin external preparation that has excellent temporal stability and is excellent in an instantaneous improvement in moisture retention feeling and skin moisture retention effect after successive use.SOLUTION: A skin external preparation comprises (A) component: Alaria Esculenta extract 0.0001-0.08 mass% and (B) component: glycosyl trehalose 0.04-2.5 mass%.【課題】経時安定性に優れ、即時的な保湿感の改善及び連用後の肌の保湿効果に優れた皮膚外用剤の提供。【解決手段】下記の(A)成分及び(B)成分を含有する皮膚外用剤。(A)アラリアエスクレンタ抽出物 0.0001~0.08質量%(B)グリコシルトレハロース 0.04~2.5質量%【選択図】なし