Salon hair care. Get color care without compromise with breakthrough Nexxus Dualiste Dual-Benefit Shampoo. The dual pump combines two formulas that are scientifically-developed and salon-proven to deliver the ultimate in color protection plus the customized benefits your hair needs. The Dual Pump Delivers: Volume: Measurably increases volume for full radiant hair; Color Protection: Delivers 37% better color protection (When used with Dualiste Conditioner vs. ordinary shampoo). Never tested on animals.