PROBLEM TO BE SOLVED: To provide a hair cleanser composition which can impart volume to hair, has good persistence of the volume of hair even under a high humidity environment and is excellent in giving no stiffness to the hair.SOLUTION: There is provided a hair cleanser composition which comprises (A) 1-5 mass% of an arginine compound, (B) 1-5 mass% of a hydroxy acid having 2-6 carbon atoms and (C) a surfactant, wherein the surfactant of the (C) component is at least one selected from (c1) an anionic surfactant and (C2) a nonionic surfactant and an amphoteric surfactant and the mass ratio (A/B) between the content (mass%) of the (A) component and the content (mass%) of the (B) component is 0.7-2.SELECTED DRAWING: None【課題】毛髪にボリュームを付与することができ、高湿度環境下においても毛髪のボリュームの持続性が良好であり、毛髪のごわつきのなさに優れる毛髪洗浄剤組成物の提供。【解決手段】（Ａ）アルギニン化合物１質量％～５質量％、（Ｂ）炭素数２～６のヒドロキシ酸１質量％～５質量％、及び（Ｃ）界面活性剤を含有し、前記（Ｃ）成分の界面活性剤が、（ｃ１）アニオン性界面活性剤と、（ｃ２）ノニオン性界面活性剤及び両性界面活性剤から選択される少なくとも１種であり、前記（Ａ）成分の含有量（質量％）と、前記（Ｂ）成分の含有量（質量％）との質量比（Ａ／Ｂ）が０．７～２である毛髪洗浄剤組成物。【選択図】なし
