The plus-one that goes above and beyond! infused with gentle AHA mandelic acid, rambutan seed extract, and arrowroot powder, perk up plus allows you to extend time between wash days even further than other dry shampoos**, helping to keep scalp healthy with no grittiness. this invisible dry shampoo helps absorb and remove*** oil, protects against buildup and odor, and leaves hair feeling hydrated and clean. **based on 94% agreement in a 2week, 52 participant study. ***clinically proven.