Perk Up Ultra Dry Shampoo revitalizes greasy strands courtesy of root-friendly ingredients like oil-absorbing tapioca starch, odor-removing bamboo stem extract, and our signature superfruit sea buckthorn leaving your strands and scalp feeling and looking fresher. Specially formulated for extra oily scalps and clinically proven to remove more oil than amika's traditional dry shampoo. Your oily scalps’ solution for supercharged oil control and a freshly washed feeling between daily (or every other day) wash days.