PROBLEM TO BE SOLVED: To provide a hair cosmetic that is less influenced by an external environment such as a high humidity environment, has a good hair volume and can keep the good hair volume, and has a good setting of hair ends and excellent storage stability at high temperature.SOLUTION: A hair cosmetic comprises (A) arginine 2 mass%-10 mass%, (B) ampholytic surfactant, (C) polyhydric alcohol, (D) cationic surfactant, and (E) long-chain aliphatic alcohol having 16-24 carbon atoms, where the mass ratio (B/C) is 0.3-3 and the mass ratio [A/(B+D)] is 0.10-2.SELECTED DRAWING: NoneCOPYRIGHT: (C)2016,JPO&INPIT【課題】高湿度環境等の外部環境の影響を受けにくく、毛髪のボリューム及び毛髪のボリュームの持続性が良好であり、毛先のまとまりやすさ、及び高温での保存安定性に優れる毛髪化粧料の提供。【解決手段】(A)アルギニン2質量%~10質量%と、(B)両性界面活性剤と、(C)多価アルコールと、(D)カチオン性界面活性剤と、(E)炭素数が16~24である長鎖脂肪族アルコールと、を含有し、質量比(B/C)が0.3~3であり、質量比[A/(B+D)]が0.10~2である毛髪化粧料である。【選択図】なし