PROBLEM TO BE SOLVED: To improve the effervescence of a first agent composition for aerosol type foamy oxidation hair dye in low temperature, and to provide aerosol type foamy oxidation hair dye compositions having improved finger-combing smoothness at the time of rinsing after application to the hair and an improved feel after drying, by comprising the first composition for aerosol type foamy oxidation hair dyes in their constitutions.SOLUTION: A first agent composition for aerosol type foamy oxidation hair dyes comprises (A) 2.0 to 10.0 mass% of an alkanol amide nonionic surfactant, (B) a nonionic surfactant with an HLB of 10.0 or more (except component (A)) and (C) alkanolamine in the undiluted composition of the first agent composition for aerosol type foamy oxidation hair dyes.SELECTED DRAWING: None
