This weekly at-home treatment restores a soft, weightless texture and healthy shine to dry, damaged or coloured hair. Their bestselling product, this intensive hair perfector is infused with Olaplex’s patented bond-building formula to mend broken bonds in the hair’s structure and reinforce weakened strands caused by frequent colouring, styling and UV exposure. 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 t