Olaplex No.4P Blonde Enhancer Toning Shampoo 250ml helps to soften, strengthen, and neutralise unwanted yellow and brassy tones in blonde hair for brighter, more vibrant strands that feel nourished and healthy. Sulfate-free and colour-safe, this highly concentrated formula is suitable for all hair types and allows for customisable toning, meaning the longer you treat, the brighter the results. Unique and innovative, this shampoo provides 3x brighter results compared to other bestselling purple shampoos available. All OLAPLEX products contain our patented technology, strengthening fragile bonds with every step of the routine for the healthiest hair possible. Benefits Of Olaplex No.4P Blonde Enhancer Toning Shampoo 250ml: Neutralises unwanted yellow tones in blonde hair Vegan and cruelty-free Suitable for all hair types 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,