PROBLEM TO BE SOLVED: To provide a multi-component hair dye composition excellent in decolorability and dyeability.SOLUTION: This multi-component hair dye composition comprises components (a), (b) and (c) which are mixed upon use, where (a) is 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 a bivalent group such as an amino acid residue, 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 (b) is an alkali agent and (c) is an oxidizing agent.COPYRIGHT: (C)2009,JPO&INPIT【課題】脱色性及び染色性に優れる多剤型染毛剤組成物を提供すること。【解決手段】成分(a)、(b)及び(c)を含有し、使用時に混合して用いる多剤型染毛剤組成物。 (a)アミノ酸残基の数が2又は3である、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〔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はアミノ酸残基等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。〕 (b)アルカリ剤 (c)酸化剤【選択図】なし
