PROBLEM TO BE SOLVED: To provide an external composition for skin or an oral composition derived from natural products with excellent biosafety and having effects on skin aging prevention, the improvement of alterations in skin color, the improvement of skin health, and inhibition of hair loss.SOLUTION: The invention provides a collagen synthesis promoter, a fibroblast activator, an estrogenic agent, and a proteasomal activity enhancer which contain as an active ingredient the extract of Vigna angularis which is a Fabaceae plant; and an external composition for skin or an oral composition which contain their agents.SELECTED DRAWING: NoneCOPYRIGHT: (C)2016,JPO&INPIT【課題】天然物由来で生体安全性にすぐれ、かつ、皮膚の老化防止、皮膚の色調の変化の改善皮膚の健全化効果及び脱毛抑制効果を有する皮膚外用組成物または経口用組成物を提供する。【解決手段】マメ科植物であるアズキ(小豆)の抽出物を有効成分として含有するコラーゲン合成促進剤、線維芽細胞賦活剤、女性ホルモン様作用剤、およびプロテアソーム活性亢進剤、並びに、それらの剤を含む皮膚外用組成物または経口用組成物である。【選択図】なし