Provided is a hair cosmetic composition having excellent formulation stability even when mixed with a carbonate, and imparting favorable brightness to hair. A hair cosmetic composition configured as a hair dye or a hair-bleaching agent, and at time of use entailing the mixing of a first agent and a second agent and subsequent application to hair, the hair cosmetic composition being characterized by containing the following components (A-C) in the first agent: potassium carbonate (A), a higher alcohol (B), and a cationic surfactant (C).本發明係關於即使摻混碳酸鹽,製劑穩定性仍優異,且賦予毛髮良好的光亮度之毛髮化妝料組成物。本發明之毛髮化妝料組成物,其係作為染髮劑或毛髮脫色劑而構成,使用時混合第1製劑和第2製劑而應用於毛髮之毛髮化妝料組成物,其特徵在於第1製劑中含有後述(A)成分~(C)成分,(A)碳酸鉀、(B)高級醇、(C)陽離子性界面活性劑。
