PROBLEM TO BE SOLVED: To provide a safety hair dyestuff which shortens a time of hair dyeing, has an excellent dyeing ability of a hair dye and color tone, and has an effect of preventing photobleaching.SOLUTION: There is provided a hair dyestuff includes a combination of: (a) a first agent containing a material which reacts with iron and develops a color, and an ultraviolet absorber having a 2-hydroxybenzophenone skeleton and (b) a second agent containing an iron salt.COPYRIGHT: (C)2011,JPO&INPIT【課題】染毛時間が短く、良好な染毛性及び色調を有し、更に光退色防止効果を有する、安全な染毛剤を提供すること。【解決手段】(a)鉄と反応して発色する物質と、2-ヒドロキシベンゾフェノン骨格を有する紫外線吸収剤とを含有する第1剤、及び(b)鉄塩を含有する第2剤を組み合わせて含む染毛剤。【選択図】なし
