PROBLEM TO BE SOLVED: To provide an intermediate treatment in which, by using the agent between the reduction treatment of a hair and the oxidation treatment of the hair in hair deformation treatment, thereby, the effect of the hair deformation treatment is sufficiently obtained, and there is almost no residual odor, and a good finish feeling is obtained, and to provide a method for treating the hair.SOLUTION: The present invention relates to the intermediate treatment agent for the hair deformation treatment used after treating the hair with a first agent containing a reducing agent and before treating the hair with a second agent containing an oxidizing agent, wherein the intermediate treatment agent contains 0.1 to 3.5 mass% of the oxidizing agent and has a pH of 6.0 to 10.0.SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】毛髪変形処理における毛髪の還元処理と毛髪の酸化処理の間に用いることで、毛髪変形処理の効果が十分に得られ、かつ残臭もほぼ無く、良好な仕上がり感が得られる中間処理剤、及び、毛髪の処理方法を提供することを目的とする。【解決手段】還元剤を含有する第1剤により毛髪を処理した後、酸化剤を含有する第2剤により毛髪を処理する前に使用される毛髪変形処理用中間処理剤であって、0.1~3.5質量%の酸化剤を含有し、かつpHが6.0~10.0である。【選択図】なし
