PROBLEM TO BE SOLVED: To provide a photosensitive hair dye that has excellent hair-dyeing performance and storage stability in a contradictory relationship, and enables hair dyeing with various color tones.SOLUTION: A photosensitive hair dye composition comprises water-soluble silver oxide-amino acid complex composed of silver oxide and amino acid.COPYRIGHT: (C)2015,JPO&INPIT【課題】本発明は、矛盾する関係にある染毛性と保存安定性に優れ、様々な色調で染毛可能な感光性染毛料を提供する。【解決手段】酸化銀とアミノ酸からなる水溶性酸化銀-アミノ酸錯体を含有する感光性染毛料組成物。【選択図】図1