PROBLEM TO BE SOLVED: To provide a method of simultaneous straightening and dyeing of curly hairs in a short time with small damages to the hair and with little economical burden.SOLUTION: Straightening and dyeing curly hairs are simultaneously conducted with a minimal damage to the hair by using cysteamine hydrochloride or 1-thioglycol for the reductant without using an iron for straightening curly hairs, straightening the curly hairs by blowing and hair-brushing, and using a mixture of the first agent of a hair color and the second agent of the hair color as the oxidant.COPYRIGHT: (C)2013,JPO&INPIT【課題】癖毛の修正と毛染めを毛髪のダメージを少なく、短時間に経済的負担を少なく行う方法の提供。【解決手段】システアミン塩酸塩または1-チオグリコールを還元剤とし縮毛矯正用アイロンを使わず、ヘアーブラシとブローで癖毛を伸ばし、酸化剤として染毛剤第一剤と染毛剤第二剤の混合物を使用することにより毛髪のダメージを少なく癖毛の修正と染毛を同時に行うことができた。【選択図】なし