Formulation comprising ester quats based on isopropanolamine

A cosmetic formulation comprising:

• 0.2 to 25% by weight of at least one compound of general formula I)
• where R1 is an acyl radical of an at least monounsaturated fatty acid with a chain length of 18 to 24 carbon atoms or an acyl radical of isostearic acid or ricinoleic acid,
• R2 is an alkyl radical having 1 to 6 carbon atoms,
• a=1 to 3, and
• b=1 to 3, with the proviso that a+b=4,
• 2.0 to 7.0% by weight of a mixture of fatty alcohols having 16 and 18 carbon atoms,
• 0.1 to 7% by weight of at least one compound of general formula II
• where R4—CO is selected from aliphatic, linear or branched acyl radical having 6 to 22 carbon atoms and 0, 1, 2 or 3 double bonds,
• R3 and R5 are selected from identical or different alkyl radicals, which can optionally be substituted with polar groups,
• n is an integer selected from 1 to 10;
• and the formulation further comprises
• 40 to 99.8% by weight of water,
• where the percentages by weight refer to the total formulation.