PROBLEM TO BE SOLVED: To provide a curly hair-correcting method and an auxiliary agent for curly hair correction which can achieve suitable curly hair correction, deterioration suppression of a feeling of the hair, or damage suppression to the hair.SOLUTION: A curly hair-correcting method uses: a first agent containing a reducing agent and an alkali agent and a second agent containing an oxidizing agent. An auxiliary agent for curly hair correction containing hydrogen water having a hydrogen concentration of 1 ppm or more is applied at least any of before applying the first agent to the hair, during leaving after applying the first agent to the hair, and before applying the second agent to the hair.COPYRIGHT: (C)2015,JPO&INPIT【課題】適切な縮毛矯正、毛髪の感触の悪化抑制又は毛髪へのダメージ抑制を実現できる縮毛矯正方法及び縮毛矯正用補助剤を提供する。【解決手段】還元剤およびアルカリ剤が配合された第1剤と酸化剤が配合された第2剤とを用いた縮毛矯正方法であって、前記第1剤を毛髪に塗布する前、前記第1剤を前記毛髪に塗布してその放置中、前記第2剤を前記毛髪に塗布する前の少なくともいずれかにおいて、水素水を含有する水素濃度が1ppm以上の縮毛矯正用補助剤を前記毛髪に塗布する。【選択図】 図1