The present invention is related to an aqueous cleansing composition for keratin fibres, especially human hair, comprising at least one amino acid surfactant and an aqueous emulsion of divinyldimethicone/dimethicone copolymer. Present inventors have surprisingly found that a cleansing composition comprising at least one amino acid surfactant and divinyldimethicone/dimethicone copolymer with a special viscosity provides excellent foam performance observed as improved foam creaminess and foam volume and also excellently conditions hair in terms of smoothness, softness, combability, volume, body, elasticity and manageability. Accordingly, the present invention is a cleansing composition comprising at least one amino acid surfactant of the following structure wherein R 1 is a saturated or unsaturated, straight or branched alkyl chain with 7 to 17 C atoms, R 2 is H or a methyl, R 3 is H, COO - M + , CH 2 COO - M or COOH, n is 0 to 2, X is COO - or SO 3 - and M is independent from each other H, sodium or potassium, and an aqueous emulsion of divinyldimethicone/dimethicone copolymer with an internal phase viscosity of more than 1 x 10 8 mm 2 /s measured at 0.01 Hz at about 25°C.