Whether looking to brighten all-over colour, balayage or natural blonde styles, the Olaplex No.4P and No.5 Bundle offers a vibrancy-enhancing and fortifying duo. The toning shampoo and restorative conditioner utilise Olaplex’s unique Bond-Builder System, working to re-link broken bonds in hair that has been exposed to colour treatments and heat styling. Set Contents: No. 4-P Blonde Enhancer Toning Shampoo 250ml Saturated with highly-concentrated pigments, the blonde-enhancing shampoo works to neutralise brassy tones and improve the vibrancy of blonde hair. The formula allows you to customise your toning level by adjusting your leave-on time. No.5 Bond Maintenance Conditioner 250ml Ideal for hair weakened by frequent colouring, bleaching and heat styling, the restorative conditioner works to re-link broken bonds and fortify hair’s structure. The hydrating formula enhances manageability, helping to minimise the look of frizz and split ends.