Discover Olaplex’s signature bond-building formula with the Supersize No.3 and No.4P Bundle. Uniting a pre-wash treatment and toning shampoo, the duo works to fortify and brighten the look of colour-treated and naturally blonde hair.Set Contents:No.3 Hair Perfector Supersize 250mlA pre-wash treatment designed to rescue and restore damaged hair as a result of colouring, bleaching and styling. Formulated with a bond multiplying system, it works to re-link broken hair bonds to minimise the risk of split ends and breakages. Expect silky-smooth results.No.4P Blonde Enhancer Toning Shampoo 250mlSaturated 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.The No.3 is free of DEA, aldehydes, formaldehyde and Butylphenyl Methylpropional (Lilial).