Cleaning booster for cleaning dirty laundry is provided, wherein the cleaning booster is of formula (I), wherein b is 0-2; wherein c is 2-4; wherein R is selected from hydrogen, C1-22 alkyl and —CH2C(═O)R14; wherein R14 is of formula (VI); wherein R1 is selected from formula (II)-formula (V); (II) wherein R2 is of formula (VI); (III) wherein R3 is of formula (VI); and wherein R4 is selected from hydrogen and methyl group; (IV) wherein R5 is of formula (VI); wherein f is 1-2; and wherein g is 2-10; (V) wherein R6 is of formula (VI); (VI) wherein R7 is selected from hydrogen and C1-22 alkyl group; wherein each R8 and R9 is independently a hydrogen or a C1-2 alkyl group, with the proviso that at least one of R8 and R9 is hydrogen in each subunit a; and wherein a is 0-30.