An aqueous surfactant composition containingone or more alpha-sulfo fatty acid disalt (A) of general formula (I),R1CH(SO3M1)COOM2 ； ；(I),in which the radical R1 is a linear or branched alkyl or alkenyl radical having 6 to 18 carbon atoms and the radicals M1 and M2, independently of one another, are selected from the group comprising H, Li, Na, K, Ca/2, Mg/2, ammonium, and alkanolamine,one or more protein derivative (B2), wherein the protein derivatives (B2) are reaction products of one or more protein hydrolyzates (B1) with a substance selected from fatty acids, fatty acid chlorides, cationization reagents, and protein hydrolyzates (B1), wherein the protein hydrolyzates (B1) are proteins, peptides, and/or amino acids produced by chemical and/or enzymatic hydrolysis of proteins from plant or animal sources, and water.These compositions have good foaming ability, a pleasant sensory feel to the foam, good skin compatibility, and are suitable for cosmetic products, detergents, and cleaning products.
