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. 94% said perk up plus extends time even further between washes than other dry shampoos.* natural feel + finish: this lightweight formula leaves hair feeling clean, without a trace of residue or buildup. infused with scalp-friendly ingredients like mandelic acid, rambutan seed extract, arrowroot powder + peptides.