PROBLEM TO BE SOLVED: To provide a new testosterone 5&alpha-reductase inhibitor, to provide an androgen receptor-binding inhibitor, to provide an antiandrogenic agent, and to provide a hair growth cosmetic.SOLUTION: This testosterone 5&alpha-reductase inhibitor contains an extract from branches and leaves of Ampelopsis grossendentata. The androgen receptor- binding inhibitor, the antiandrogenic agent, and the hair growth cosmetic contain the extract, respectively.COPYRIGHT: (C)2002,JPO【課題】 新規なテストステロン5α-レダクターゼ阻害剤、アンドロゲン受容体結合阻害剤、抗男性ホルモン剤及び養毛化粧料。【解決手段】 新規なテストステロン5α-レダクターゼ阻害剤、アンドロゲン受容体結合阻害剤、抗男性ホルモン剤及び養毛化粧料に、藤茶の枝葉からの抽出物を含有せしめる。
