Patent ID: 7896932
Filing Date: 2011-03-01
Classification: A61K,A61Q

Abstract:
1. A non-oxidative hair dye composition comprising the following components (a) and (b): (a) one or two or more kinds of a glycylglycine derivative represented by the following formula (1) and having two or three amino acid residues, or salts thereof: wherein X represents a bivalent hydrocarbon group having 1 to 4 carbon atoms which may be substituted with a hydroxyl group, or an amino acid residue; Y represents an amino acid residue, or a bivalent group represented by the following formula (2): wherein symbol -* represents a bond that binds to an adjacent carbonyl group or oxygen atom; R represents a hydrogen atom, or a monovalent hydrocarbon group having 1 to 4 carbon atoms which may be substituted with a hydroxyl group; and m and n each represent 0 or 1, provided that when both m and n represent 1, X cannot be an amino acid residue; and (b) a direct dye.