The Nº.4P Blonde Enhancer Toning Shampoo, infused with patented OLAPLEX Bond Building Technology, is a highly concentrated purple shampoo that cleanses, tones and repairs with a sulfate-free formula that neutralizes brassiness and boosts brightness after just one use.

• Nº.4P Blonde Enhancer Toning Shampoo neutralizes unwanted brassiness and yellow tones.
• Nº.4P Blonde Enhancer Toning Shampoo cleanses without stripping and drying.
• Nº.4P Blonde Enhancer Toning Shampoo is Sulfate free and PH Balanced.
• Flexible timing allows for a more customizable end result.
• Nº.4P Blonde Enhancer Toning Shampoo is scientifically Proven: 3x brighter*

*compared to top purple shampoos.