4. The composition of any one of claims 1 to 3, wherein the foam is stable for at least 5-10 seconds, more preferably 10-20 seconds, even more preferably 20-30 seconds when dispensing a composition consisting of 36% (w/w) ethanol and 0.2% (w/w) of the foam booster from a foam dispenser having an mixing chamber wherein the composition is mixed with air in an air to liquid ratio of 11 onto an inert, hard surface at 20
