PROBLEM TO BE SOLVED: To provide a hair dye that does not change or little changes in dyeing hue and dyeing density even when stored for a long time, and has excellent dyeing fastness.SOLUTION: The hair dye is provided that contains an oxidation polymer of an oxidation dye and an alcohol solvent as a main solvent.SELECTED DRAWING: NoneCOPYRIGHT: (C)2019,JPO&INPIT【課題】 長期間保存した場合であっても、染色色味や染色濃度の変化がない又は小さく、且つ染色堅牢性に優れる染毛剤を提供すること。【解決手段】 酸化染料の酸化重合体及び主溶媒としてのアルコール溶媒を含有する染毛剤。【選択図】なし