Olaplex No 4P Blonde Enhancer Toning Shampoo (1000ml) is a new innovative shampoo which helps to repair, cleanse, and tone blonde, lightened and grey hair types with its patented, special action. Original Olaplex No 4 Bond Maintenance Shampoo traditionally cleanses whilst gently supporting hair repair and imparting needed hydration. This new formula maintains all the same benefits of the original, including the Olaplex's Bond Building Technology, however it has added patented toning ingredients so this shampoo deposits just the right amount of colour to neutralise and remove any brassy, warm colours or hues from hair between salon visits, with results in as little a 5 minutes! Free from parabens, sulphates and phthalates. Cruelty-free & vegan-friendly.