PROBLEM TO BE SOLVED: To provide a hair treatment method which restores the damage of hair damaged by chemical treatment such as a relaxer, perming, hair coloring and hair bleaching.SOLUTION: There is provided a hair treatment method which comprises the following steps (i) to (ii) and restores the damage of hair damaged by chemical treatment: (i) a step of applying a hair treating agent containing the following components (A), (B) and (C) to the hair damaged by chemical treatment: (A) a compound selected from glyoxylic acid, a glyoxylic acid hydrate, a glyoxylic acid salt and glyoxylamide, (B) a phenol compound having an electron-donating group at least one site at the meta-position in which at least one site at the ortho-position or para position is H (the electron-donating group at the meta-position may form a benzene ring which may be substituted with OH together with the adjacent carbon atoms) and (C) water and (ii) a step of heating the hair to which the hair treating agent is applied.SELECTED DRAWING: NoneCOPYRIGHT: (C)2019,JPO&INPIT【課題】リラクサー、パーマ、ヘアカラー、ヘアブリーチ等の化学処理によって損傷を受けた毛髪の損傷を修復する毛髪処理方法の提供。【解決手段】下記工程(i)及び(ii)を含む、化学処理され損傷した毛髪の損傷を修復する毛髪処理方法。 (i) 以下の成分(A)、(B)及び(C)を含有する毛髪処理剤を、化学処理され損傷した毛髪に塗布するステップ (A):グリオキシル酸、グリオキシル酸水和物、グリオキシル酸塩及びグリオキシルアミドから選ばれる化合物 (B):メタ位の少なくとも1ヶ所に電子供与基を有し、オルト位とパラ位の少なくとも一か所がHであるフェノール化合物(メタ位の電子供与基は隣接するC原子と共にOHが置換してもよいベンゼン環を形成してもよい) (C):水 (ii) 毛髪処理剤を塗布した毛髪を加熱するステップ【選択図】なし
