According to one embodiment, the compositions do not comprise a betaine surfactant, in particular a betaine surfactant of the formula ##STR3## where R1 is an aliphatic alkyl radical having from 8 to 22 carbon atoms, R2 and R3 independently of one another are an alkyl and/or hydroxyalkyl radical having from 1 to 4 carbon atoms, n and m independently of one another are numbers in the range from 1 to