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.
- Neutralizes unwanted brassiness and yellow tones.
- Cleanses without stripping and drying.
- Sulfate free and PH Balanced.
- Flexible timing allows for a more customizable end result.
- Scientifically proven: 3x brighter