PROBLEM TO BE SOLVED: To provide a first agent for regulating hair shape, hardly causing excessive shrinkage even when the hair damaged by chemical treatment is treated, and having high curl-imparting effects and high curled hair-inhibiting effects.SOLUTION: The first agent for regulating the hair shape contains (A) a keratin-reducing material, (B) an &alpha,&omega-dicarboxylic acid represented by general formula (1) (wherein, R1 is a 3-8C alkylene group) or a salt thereof, and (C) a cationic surfactant.COPYRIGHT: (C)2008,JPO&INPIT【課題】化学処理による損傷を受けた毛髪を処理した場合でも過収縮を起こすことなく、高いカール形状付与効果や高い縮毛抑制効果を有する毛髪形状制御剤第1剤を提供すること。【解決手段】次の成分(A)、(B)及び(C)(A)ケラチン還元性物質(B)一般式(1)で表されるα,ω‐ジカルボン酸又はその塩〔式中、R1は炭素数3~8のアルキレン基を示す。〕(C)カチオン界面活性剤を含有する毛髪形状制御剤第1剤。【選択図】なし
