Olaplex Blonde Enhancing Toning Shampoo No.4P strengthens softens and neutralises unwanted brassy, yellow tones for brighter, more manageable hair.

It's a highly concentrated purple shampoo that cleanses, tones, and repairs while keeping hair hydrated from roots to ends.

The sulfate-free formula creates a rich lather to neutralize brassiness and boost brightness after one use for all blonde, lightened, and grey hair.

How to Use: Apply to wet hair. Lather fully & let process for 1-3 minutes. Then rinse thoroughly. For more intense toning, leave on for up to 5 minutes.