Foamable preparations

A method of producing a foamable cosmetic or dermatological preparation, comprising combining a gaseous ingredient with a cosmetic or dermatological base comprising:

• I. an emulsifier system comprising:
• A. at least one emulsifier A selected from the group consisting of wholly neutralized, partially neutralized and unneutralized, branched and unbranched, saturated and unsaturated fatty acids having a chain length of from 10 to 40 carbon atoms,
• B. at least one emulsifier B selected from the group consisting of polyethoxylated fatty acid esters having a chain length of from 10 to 40 carbon atoms and a degree of ethoxylation of from 5 to 100, and
• C. at least one coemulsifier C selected from the group consisting of saturated and unsaturated, branched and unbranched fatty alcohols having a chain length of from 10 to 40 carbon atoms;
• and
• II. up to 50% by weight—based on the total weight of the foamable preparation—of a lipid phase which comprises one or more nonpolar lipids having a polarity of at least 30 mN/m.