OLAPLEX No.4P Blonde Enhancer Toning Shampoo strengthens, softens and neutralizes unwanted yellow tones for brighter hair.

The sulfate-free, highly concentrated formula allows for customizable toning...the longer you treat, the brighter the results.

3x brighter compared to top purple shampoos.

- Vegan - Cruelty Free - Paraben Free, Sulfate Free - Phosphate Free - Colour Safe - All hair types

All OLAPLEX products contain our patented technology, strengthening fragile bonds with every step of the routine for the healthiest hair possible.

How to use: apply to wet hair. Lather fully and let process 1-3 minutes then rinse. For more intense toning, leave on up to 5 minutes.

Tip: if hair has product buildup, cleanse first with OLAPLEX No.4 Bond Maintenance Shampoo.

Tone then hydrate:  - No.5 Bond Maintenance Conditioner for lightweight moisture - No.8 Bond Intense Mask for intense moisture - 4-in-1 Moisture Mask for professional-strength hydration