PROBLEM TO BE SOLVED: To provide a hair-restoring and growing active ingredient having an excellent hair-restoring and growing effect, and to provide a hair-restoring and growing agent containing the hair-restoring and growing active ingredient.SOLUTION: This hair-restoring and growing active ingredient comprises a compound represented by the general formula (1) {R1 is a group represented by structural formula (2) [A is independently CH2, C(=O), O or NH R2 is an alkylene, a cycloalkylene or an arylene R3 is independently H or a 1 to 6C alkyl or alkoxy (m) is independently 0 or 1 (n) is 0 or 1]}.COPYRIGHT: (C)2007,JPO&INPIT【課題】優れた育毛養毛効果を有する育毛養毛有効成分、及びこの育毛養毛有効成分を配合してなる育毛養毛剤を提供する。【解決手段】下記一般式(1)で表される化合物からなる育毛養毛有効成分。[式中、R1は下記構造式(2)(式中、Aは独立にCH2、C(=O)、O又はNHを示し、R2はアルキレン基、シクロアルキレン基又はアリーレン基を示す。R3は独立に水素原子、又は炭素数1~6のアルキル基もしくはアルコキシ基を示す。mは独立に0又は1、nは0又は1を示す。)で表される基である。]【選択図】なし
