Product Description This ultra-concentrated purple shampoo reduces breakage and hydrates as it cleanses and tones from roots to ends. Use No.4P to neutralize brassy hair and yellow tones for brighter, softer, stronger blond hair, gray hair, or highlighted hair. Effective on natural and color-treated hair. Brand Story The original bond builder. Our patented active chemistry works on a molecular level to repair damaged and broken bonds. Item display volume 250.0 milliliters