Turn up the volume with the schwarzkopf professional bc bonacure volume boost shampoo a purifying shampoo for fine and weak hair specifically formulated for fine hair the volume boost shampoo provides weightless volume that cares and boosts without overburdening the hair completely silicone free the shampoo infuses hair with stability fullness and hydration with every use the ultimate start to any hair care regime where fullness and extra volume is a must the volume boost shampoo will