lightweight + buildable dry shampoo that lets you extend time even further between wash days. what is perk up plus extended clean dry shampoo? Need a wash day extension? this buildable dry shampoo revitalizes roots with scalp-friendly ingredients—boosting time (not buildup!) between wash days. who it's for? strands calling for shampoo 1–2x per week why it's special? Infused with good-for-scalp ingredients like mandelic acid + arrowroot powder, perk up plus extended clean dry shampoo allows you to go the distance between wash days with a lightweight, natural feel + finish. 53 Oz. / 199 mL