Leave Dull, Dry, Brassy Blondes & Greys In The Past. The Future Of Blonde Is High-Def Brightness + Soft, Shiny, Hydrated Hair. No 4P Blonde Enhancer Toning Shampoo Is Formulated With Micro-Fine Pigments In A Root-To-Tip Formula That Locks In Allover Brightness, Neutralizes Yellow Tones & Nourishes Every Inch Without Weighing Hair Down At The Roots.