PROBLEM TO BE SOLVED: To provide a cleaning composition having an appropriate viscosity and being rich in conditioning effect.SOLUTION: A cleansing composition contains 5-20% by weight of an acylamino acid surfactant represented by the following formula, is compounded with a nonionic surfactant and a betaine ampholytic surfactant, and has a viscosity at 20°C of 300-4000 mPa-s. Further, a cleansing composition with low scalp irritation and with a high hair protective effect can be obtained by adding a cationic polymer to the three components. That is, a cleaning agent also having a conditioning effect without compounding silicone or the like, especially a shampoo, a conditioning shampoo can be obtained. A cleansing composition having an excellent conditioning effect such as repair of the damaged hair can be obtained by compounding a cationic polymer to enhance the coacervate forming ability of the present cleansing composition. R-NH-CH(COOX1)(CH2)nCOOX2)(R is an acyl group of C8-20 n is 1 or 2 X1 and X2 are each independently H, an alkali metal, an alkaline earth metal, or the like.)SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】適度な粘度を有し、コンディショニング効果に富む洗浄用組成物の提供。【解決手段】下式で表されるアシルアミノ酸系界面活性剤を5~20重量%含有し、ノニオン性界面活性剤とベタイン系両性界面活性剤を配合し、20℃での粘度が300~4000mPa・sである洗浄用組成物。更に、前記3成分にカチオン性高分子を加えることで、頭皮刺激性が低く、毛髪保護作用の高い洗浄用組成物。即ち、シリコーン等を配合することなくコンディショニング作用も有する洗浄剤、特には、シャンプー、コンディショニングシャンプー。カチオン性高分子を配合することで、本洗浄用組成物のコアセルベート形成能が高まり、損傷毛の修復等のコンディショニング効果に優れる洗浄用組成物。R-NH-CH(COOX1)(CH2)nCOOX2)(RはC8~20のアシル基;nは1又は2;X1及びX2は各々独立にH、アルカリ金属,アルカリ土類金属等)【選択図】なし
