As for purpose of this invention, there are times when useful utilization form of the growth hair medicine which possesses growth hair action, and the growth hair medicine which catches is offered. This invention, the oral medicine and the external use medicine which contain the growth hair medicine which contains the risosuperumin acid derivative or that salt which is displayed with below-mentioned general formula (i) as the active ingredient, and the growth hair medicine which catches, is something regarding the food.< Conversion 6 > In formula (i), R1, R2, equality or differing, the respective hydrogen or the carbon count displays alkyl 1 which is possible to be substituted - 4. R3 hydrogen, the carbon count displays the basis where is displayed 1 which is possible to be substituted - 4 with alkyl or next general formula (ii).< Conversion 7 >< Selective figure > It is not本発明の目的は、育毛作用を有する育毛剤、及びかかる育毛剤の有用な利用形態を提供することにある。本発明は、下記一般式(I)で表されるリソスペルミン酸誘導体又はその塩を有効成分として含有する育毛剤、及びかかる育毛剤を含有する経口剤、外用剤、食品に関するものである。【化6】式(I)中、R1、R2は、同一又は異なって、それぞれ水素又は置換されていてもよい炭素数1~4のアルキルを表す。R3は水素、置換されていてもよい炭素数1~4のアルキル又は次の一般式(II)で表される基を表す。【化7】【選択図】 なし
