PROBLEM TO BE SOLVED: To provide a hair treating agent for a hair dye or a hair-bleaching agent including a first agent with the small difference of storage stability by change in pH.SOLUTION: The hair treating agent is used as a hair dye or a hair-bleaching agent including the first agent of alkaline nature and a second agent into which an oxidizing agent is combined, wherein the pH of the first agent is set to less than 9.8, and further the first agent is combined with a carbonic acid based ammonium salt and a phosphate based ammonium salt, and the combining concentration of the carbonic acid based ammonium salt in the first agent is made less than 7.5 mass%.COPYRIGHT: (C)2012,JPO&INPIT【課題】pHの変更によっても保存安定性の差が小さい第1剤を備える染毛剤又は毛髪脱色剤用毛髪処理剤の提供。【解決手段】アルカリ性の第1剤及び酸化剤が配合された第2剤を備える染毛剤又は毛髪脱色剤として用いられる毛髪処理剤において、第1剤のpHを9.8未満に設定し、更に、第1剤には炭酸系アンモニウム塩及びリン酸系アンモニウム塩を配合し、かつ、第1剤における炭酸系アンモニウム塩の配合濃度を7.5質量%未満とする。【選択図】なし
