Provided is an oxidative hair dye composition having an excellent effect of hair dyeing and little hair lesion. The oxidative hair dye composition of this invention is a dual formulation oxidative hair dye composition that comprises a first agent containing an oxidative dye and a second agent containing an oxidative agent to be mixed before use, and the first agent and/or the second agent contain(s) an acetylated hyaluronic acid or salts thereof.本發明係提供一種具有優良的染毛效果且對於毛髮的損傷較少之氧化染毛劑組成物。本發明之氧化染毛劑組成物係由含有氧化染料之第1劑與含有氧化劑之第2劑構成,於使用前混合之2劑型的氧化染毛劑組成物,且第1劑及/或第2劑含有乙醯化玻尿酸或其鹽類者。該代表圖無元件符號及其代表之意義。
