A solid surfactant composition comprising 35 to 45 percent by weight based on the weight of the solid surfactant composition of - one or more alpha-sulfo fatty acid monosalts and/or disalts and/or protonated acids of the general formula, R 1 CH(SO 3 M 1)COOM 2 in which the radical R 1 is a linear or branched alkyl or alkenyl radical with 6 to 16 carbon atoms and the radicals M 1 and M 2 - independently of one another - are selected from the group H, Li, Na, K, Ca, Mg, ammonium and alkanolamine and encompass a disalt and/or a monosalt and/or a protonated acid, and • 23 to 35 percent by weight based on the weight of the solid surfactant composition of - one or more dextrins of the general formula, in which n is an integer between 3 and 200, and • 7 to 15 percent by weight based on the weight of the solid surfactant composition of water, where the following provisos apply: • if the surfactant composition comprises one or more of compound ester sulfonates of the general formula, R 2 CH(SO 3 M 7)COOR 3 in which the radical R 2 is a linear or branched alkyl or alkenyl radical with 6 to 18 carbon atoms and the radical R 3 is a linear or branched alkyl or alkenyl radical with 1 to 20 carbon atoms, and the radical M 7 is selected from the group Li, Na, K, Ca, Mg, ammonium and alkanolamines, it is the case that the compounds - based on the sum of the compounds and - must be present to more than 50% by weight. 35 to 45 percent by weight based on the weight of the solid surfactant composition of - one or more alpha-sulfo fatty acid monosalts and/or disalts and/or protonated acids of the general formula, R 1 CH(SO 3 M 1)COOM 2 in which the radical R 1 is a linear or branched alkyl or alkenyl radical with 6 to 16 carbon atoms and the radicals M 1 and M 2 - independently of one another - are selected from the group H, Li, Na, K, Ca, Mg, ammonium and alkanolamine and encompass a disalt and/or a monosalt and/or a protonated acid, and - one or more alpha-sulfo fatty acid monosalts and/or disalts and/or protonated acids of the general formula, R 1 CH(SO 3 M 1)COOM 2 in which the radical R 1 is a linear or branched alkyl or alkenyl radical with 6 to 16 carbon atoms and the radicals M 1 and M 2 - independently of one another - are selected from the group H, Li, Na, K, Ca, Mg, ammonium and alkanolamine and encompass a disalt and/or a monosalt and/or a protonated acid, and • 23 to 35 percent by weight based on the weight of the solid surfactant composition of - one or more dextrins of the general formula, in which n is an integer between 3 and 200, and - one or more dextrins of the general formula, in which n is an integer between 3 and 200, and • 7 to 15 percent by weight based on the weight of the solid surfactant composition of water, where the following provisos apply: • if the surfactant composition comprises one or more of compound ester sulfonates of the general formula, R 2 CH(SO 3 M 7)COOR 3 in which the radical R 2 is a linear or branched alkyl or alkenyl radical with 6 to 18 carbon atoms and the radical R 3 is a linear or branched alkyl or alkenyl radical with 1 to 20 carbon atoms, and the radical M 7 is selected from the group Li, Na, K, Ca, Mg, ammonium and alkanolamines, it is the case that the compounds - based on the sum of the compounds and - must be present to more than 50% by weight. • if the surfactant composition comprises one or more of compound ester sulfonates of the general formula, R 2 CH(SO 3 M 7)COOR 3 in which the radical R 2 is a linear or branched alkyl or alkenyl radical with 6 to 18 carbon atoms and the radical R 3 is a linear or branched alkyl or alkenyl radical with 1 to 20 carbon atoms, and the radical M 7 is selected from the group Li, Na, K, Ca, Mg, ammonium and alkanolamines, it is the case that the compounds - based on the sum of the compounds and - must be present to more than 50% by weight.