Olaplex No.4P Blonde Enhancer Toning Shampoo 250ml

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, grey hair, or highlighted hair. Effective on natural and colour-treated hair. Clinical Results: Clinically Proven 3X brighter hair* 91% agree hair was less brassy** 52% less breakage​ after one use*** *Compared to top purple shampoos. **Based on an independent consumer perception study of 60 women with bleached/color-treated blonde hair. ***After 1 use when used as a system, clinically tested. How to use: Distribute evenly between palms first. Apply to wet hair. Lather fully. Leave on for 1-3 minutes. Rinse well. For more intense toning, leave on hair up to 5 minutes. Follow with No.5P Blonde Enhancer™ Toning Conditioner for maximum toning results. Use weekly or as-needed.