Rahua Voluminous Shampoo This Rahua Voluminous Shampoo ($34) is the one I've been using for thicker-feeling hair. I also use it with the Voluminous Conditioner ($36). Image Source: sephora.com Rahua Voluminous Shampoo $34 from sephora.com Buy Now Voluminous Conditioner $36 from sephora.com Buy Now