Foam formulation comprising a substantially emulsifier-free emulsion of the oil-in-water type, comprises an oil phase and an aqueous phase, where the emulsion comprises at least one surface active, ionic polymer with a molecular weight of more than 5000 g/mol, and the ionic polymer is a copolymer comprising as monomer units an ionic monomer, and at least one further monomer. An independent claim is included for manufacturing the foam formulation, comprising preparing an emulsion of the oil-in-water type, filling the emulsion with propellant into a pressurized container, or filling the emulsion into a container other than a pressurized container that upon dispensing of the emulsion generates a foam.本発明は、油相および水相を含む水中油型の実質的に乳化剤を含まないエマルションを含む泡沫製剤であって、このエマルションは、５０００ｇ／ｍｏｌ超の分子量を有する少なくとも１つの表面活性なイオン性ポリマーを含み、このイオン性ポリマーは、モノマー単位としてイオン性モノマー（Ｍ１）および少なくとも１つのさらなるモノマーを含むコポリマーである、泡沫製剤に関する。【選択図】図１
