Keep blonde hair bright and strong with the No. 4-P Blonde Enhancer Toning Shampoo from Olaplex. Formulated for natural or color-treated blonde hair, this sulfate-free formula cleanses while the highly concentrated pigment formula allows for customizable toning levels that help neutralize brassiness and brighten blond hair. Key Benefits: Cleanses, hydrates and repairs hair Brightens and neutralizes brassiness in blonde hair Highly concentrated pigment allows customizable toning levels Strengthens fragile bonds Ideal for natural and color-treated hair | Olaplex No. 4P Blonde Hair Hydrating and Brightening Purple Toning Shampoo, 250 ml | Dermstore