Olaplex No.4P is a highly concentrated purple shampoo that cleanses, tones, and repairs while keeping hair hydrated from roots to ends. Sulfate-free formula creates a rich lather to neutralize brassiness and boost brightness after one use for all blonde, lightened, and grey hair.
Scientifically Proven: 3x Brighter* *Compared to top purple shampoos
How to Use:
Apply to wet hair, lather fully, and let process. Use 2-3 times per week or as often as needed to neutralize unwanted brassiness in blonde, lightened, and grey hair.
