Washing or cleaning agents with improved foaming behavior

The present invention relates to washing or cleaning agent containing at least one anionic surfactant and at least one alkylamidopropylbetaine the general formula (I) wherein pure, preferably linear, alkyl radical having 7 to 9 carbon atoms and round Rgleichartige or different alkyl radicals having 1 to 3 carbon atoms, preferably methyl, as well as methods for preparing such washing or cleaning agents and their use.