Developed especially for today's styles Harmony Volume Boost is a vegan formulation that will create instant volume and lift. With a delicate scent of coconut, Volume Boost mousse provides protection against humidity and frizz as well as controlled hold. Developed especially for today's styles Harmony Volume Boost is a vegan formulation that will create instant volume and lift. With a delicate scent of coconut, Volume Boost mousse provides protection against humidity and frizz as well as controlled hold. Long lasting hold up to 24 hours. Contains UV Absorbr, Provitamin B% and Argan Oil. Maintains natural look of hair , improving shine and feel.