The invention relates to aqueous surfactant compositions comprising? one or more alpha-sulfo fatty acid disals (a) of the general formula (i),r1ch (so3m1) coom2 (i), wherein the group r1 is a straight or branched alkyl or alkenyl group of 6 to 18 carbon atoms and the groups m1 and m2 are independently selected from the group consisting of h, I read at, k, ca / 2, mg / 2, ammonium and alkanolamines, ? one or more alkanolamides (b) which are selected from the group of compounds of general formula (iia),(ib) and (ib), r13 'co' nr14r15 (iia), r13 'co' nr14r16 (ib), r13 'co' nr14r17 (iic), wherein the group r13 in compounds (iia) is a straight or branched alkyl group of 6 to 18 carbon atoms and the groups r14 and r15, independently of each other, represent a straight or branched hydroxyalkyl group of 1 to 4 carbon atoms； wherein the group r13 in compounds (iib) is a straight or branched alkyl group of 6 to 18 carbon atoms,R14 is a straight or branched hydroxyalkyl group having from 1 to 4 carbon atoms and R16 is hydrogen； and wherein the group r13 in compounds (iic) is a straight or branched alkyl group of 6 to 18 carbon atoms,r14 is a straight or branched hydroxyalkyl group of 1 to 4 carbon atoms and r17 is an alkyl group of 1 to 4 carbon atoms, and ? Water,wherein the defined boundary conditions that are further specified in the patent claims must be met. These compositions have good foaming power and good skin tolerance and the foam has a pleasant sensory perception, and they are suitable for cosmetic as well as detergent and cleansing agents.a invenção se refere a composições tensoativas aquosas compreendendo ? um ou mais dissais de ácido alfa?sulfo graxo (a) da fórmula geral (i), r1ch(so3m1)coom2 (i), em que o grupo r1 é um grupo alquila ou alquenila linear ou ramificado com 6 a 18 átomos de carbono e os grupos m1 e m2 são selecionados independentemente um do outro do grupo que consiste em h, li, na, k, ca/2, mg/2, amônio e
