Olaplex No. 4P Blonde Enhancing Toner Shampoo

A toning shampoo that strengthens, hydrates, and neutralizes brassiness while keeping hair hydrated from roots to ends.

Suitable for all blonde, lightened, and gray hair—natural or dyed, root-to-tip or balayage—this non-drying formula can be rotated into any hair maintenance routine as needed for your best blonde yet. It’s scientifically proven to boost all blondes three times brighter