Hair mousse, also referred to as styling foam, is a hairstyling product to protect, stiffen, or style hair.[1] "Mousse" originates from a French term meaning foam.[2] Hair mousse originated in France and was brought to the North American retail market by L'Oreal in the 1980s, the first mousse product coming out under the label "Valence".[3] It is often dispensed in an aerosol foam spray or in cream form.