Olaplex No. 4P Blonde Enhancer Shampoo is an intensive purple treatment designed to neutralize yellow or brassy tones while cleansing and moisturizing the hair fiber. Its ultra-concentrated formula combines toning purple pigments, gentle surfactants derived from coconut oil, and hair bond strengthening technology. The result: shinier, softer, and stronger blonde, gray, or highlighted hair. Recommended use: Apply to wet hair, lather, leave on for 1 to 3 minutes (up to 5 minutes for a more intense tone), then rinse. Use once or twice a week as needed.
