Olaplex No.4P Blonde Enhancer Toning Shampoo is a sulfate-free, highly concentrated formula thats allows for customizable toning - the longer you treat, the brighter the results. For all blonde, lightened and grey hair. It contains Olaplex's patented technology to repair, hydrate and brighten while being gentle enough to use as often as needed. Natural or stylist-created, root-to-tip or balayage, every client can benefit using this as part of their Blonde Maintenance Routine for the best blonde yet.
Tip: If hair has product buildup, cleanse first with OLAPLEX No.4 Bond Maintenance Shampoo.
This is a deep purple colour and tones my highlights into a beautiful light ash colour, I only leave on for 3 mins but if you leave longer the colour will be more intense and you get the benefit of Olaplex technology in a lovely smelling shampoo. It really looks after your dry hair, mine actually moves now because of the condition. Lovely!