PROBLEM TO BE SOLVED: To provide an aqueous hair shampoo exhibiting good foamability and foam quality and enabling hands and fingers to be moved easily at foaming, even when the damaged hair is shampooed, and exhibiting excellent removability of the foam at the shampooing and providing little remaining feeling at rinsing.SOLUTION: The aqueous hair shampoo contains (A) an anion surfactant, (B) a cationized hydroxypropyl cellulose having a specific construction, (C) a monoalkyl glyceryl ether or monoalkenyl glyceryl ether having a 4C-12C alkyl group or 4C-12C alkenyl group.COPYRIGHT: (C)2013,JPO&INPIT【課題】傷んだ毛髪でも、泡立ち、泡質が良く、泡立て時に手や指が動かし易く、洗髪時の泡切れに優れ、すすぎ時の残留感が抑制される水性毛髪洗浄剤を提供する。【解決手段】成分(A):アニオン界面活性剤、成分(B):特定の構成を有するカチオン化ヒドロキシプロピルセルロース、成分(C):炭素数4~12のアルキル基または炭素数4~12のアルケニル基を有するモノアルキルグリセリルエーテルまたはモノアルケニルグリセリルエーテルおよび水を含有する、水性毛髪洗浄剤。【選択図】なし