A highly concentrated composition of amine salts of hydrocarbon polyalkoxy sulfates that is flowable at 25 °C, comprising: greater than 80% by weight, in particular greater than 90% by weight and in particular greater than 95% by weight amine salts of hydrocarbon polyalkoxy sulfates of the formula R 4 -O-[EO, PO, AO] n - SO 3 - HNR 1 R 2 R 3+ wherein one, two or three of the substituents R 1, R 2 and R 3 are each independently selected from the group: - alkyl having 1 to 14 carbon atoms, - alkenyl having 3 to 18 carbon atoms, - hydroxyalkyl having 3 or 4 carbon atoms, - two or three substituents are hydroxyalkyl having 2 carbon atoms, - and mixtures thereof, wherein the hydroxyalkyl is optionally alkoxylated and wherein the remaining substituents are each hydrogen; and - R 4 is/are one or more different C10 to C36 hydrocarbon(s); optionally in a mixture with less than 20% by weight, in particular less than 10% by weight of said above amine salts of hydrocarbon polyalkoxy sulfates in which said alkoxy groups are exclusively EO; at least 0.1 up to less than 5% by weight, in particular 0.2 to 3% by weight, of the non-sulfated polyalkoxylated hydrocarbon R 4 -O-[EO, PO, AO] n - H or mixtures; up to less than 5% by weight of said non-sulfated hydroxy hydrocarbons R 4 -OH or of the mixture; wherein and together represent 0.1 to 10 % by weight, in particular 0.5 to 5 % by weight, of the composition; wherein the composition comprises less than 2 % by weight of water and the number n of said alkoxy groups EO, PO, AO combined is 1 to 16, - and the alkoxy groups are selected from: - 1 to 16, propoxy groups - and optionally from one or more of the groups - 0 to 15 ethoxy groups, and - 0 to 10 C4 to C12 alkyleneoxy groups, and the alkoxy groups are distributed randomly or are present in blocks, or both. and the alkoxy groups are distributed randomly or are present in blocks, or both. greater than 80% by weight, in particular greater than 90% by weight and in particular greater than 95% by weight amine salts of hydrocarbon polyalkoxy sulfates of the formula R 4 -O-[EO, PO, AO] n - SO 3 - HNR 1 R 2 R 3+ wherein one, two or three of the substituents R 1, R 2 and R 3 are each independently selected from the group: - alkyl having 1 to 14 carbon atoms, - alkenyl having 3 to 18 carbon atoms, - hydroxyalkyl having 3 or 4 carbon atoms, - two or three substituents are hydroxyalkyl having 2 carbon atoms, - and mixtures thereof, wherein the hydroxyalkyl is optionally alkoxylated and wherein the remaining substituents are each hydrogen; and - R 4 is/are one or more different C10 to C36 hydrocarbon(s); optionally in a mixture with less than 20% by weight, in particular less than 10% by weight of said above amine salts of hydrocarbon polyalkoxy sulfates in which said alkoxy groups are exclusively EO; - alkyl having 1 to 14 carbon atoms, - alkenyl having 3 to 18 carbon atoms, - hydroxyalkyl having 3 or 4 carbon atoms, - two or three substituents are hydroxyalkyl having 2 carbon atoms, - and mixtures thereof, - R 4 is/are one or more different C10 to C36 hydrocarbon(s); at least 0.1 up to less than 5% by weight, in particular 0.2 to 3% by weight, of the non-sulfated polyalkoxylated hydrocarbon R 4 -O-[EO, PO, AO] n - H or mixtures; up to less than 5% by weight of said non-sulfated hydroxy hydrocarbons R 4 -OH or of the mixture; wherein and together represent 0.1 to 10 % by weight, in particular 0.5 to 5 % by weight, of the composition; - and the alkoxy groups are selected from: - 1 to 16, propoxy groups - and optionally from one or more of the groups - 0 to 15 ethoxy groups, and - 0 to 10 C4 to C12 alkyleneoxy groups,