Foam formulation comprises an emulsifying agent-free emulsion of the type oil-in-water comprising an oil phase and a water phase. An independent claim is included for producing the foam formulation based on the pickering emulsion, comprising: producing a pickering emulsion of the type oil-in-water, filling the pickering emulsion and propulsion gas in an pressure tank or filling the pickering emulsion other than a pressure tank, which produces a foam on release of the pickering emulsion.
