PROBLEM TO BE SOLVED: To provide a non-oxidative hair dye composition excellent fastness during shampooing.SOLUTION: This non-oxidative hair dye composition comprises the following components (a) and (b), where (a) is a mixture of one or more of glycylglycine derivatives represented by general formula (1), wherein the number of amino acid residues is 2 or 3 X is a 1-4C bivalent hydrocarbon group which may be substituted with one or more hydroxy groups, or an amino acid residue, Y is an amino acid residue or a bivalent group represented by a specific formula, R is a hydrogen atom, or a 1-4C monovalent hydrocarbon group which may be substituted with one or more hydroxy groups, m and n are each 0 or 1, provided that X is not an amino acid residue, when m and n are simultaneously 1, or salts thereof and (b) is a direct dye.COPYRIGHT: (C)2009,JPO&INPIT【課題】シャンプー堅牢性に優れる非酸化型染毛剤組成物を提供すること。【解決手段】下記の成分(a)及び(b)を含有する非酸化型染毛剤組成物。 (a)アミノ酸残基の数が2又は3である、下記一般式(1)で表されるグリシルグリシン誘導体若しくはその塩の一種又は二種以上の混合物 (b)直接染料〔式中、Xは水酸基が置換していてもよい炭素数1~4の二価の炭化水素基又はアミノ酸残基を示し、 Yはアミノ酸残基又は特定の式;で表される二価の基を示し、Rは水素原子又は水酸基が置換していてもよい炭素数1~4の一価の炭化水素基を示し、m及びnは0又は1を示す。但し、m及びnが同時に1となる場合、Xはアミノ酸残基となることはない。〕【選択図】なし
