L'Oréal debuted Free Hold, the first hair mousse, in 1983. The company claimed the mousse could hold your style in place for hours.
Modern formulas offer more than just hold. Ojon Conditioning Volumizing Foam ($22, Ojon.com) uses wheat protein for volume and strengthens hair with mineral-rich blue agave nectar. And Ojon oil seals the hair cuticle to minimize frizz and help hair retain moisture.