Olaplex No.4P Bond Maintenance Purple Shampoo has a highly concentrated formula that works to thoroughly and quickly to neutralise all unwanted yellow tones and brightens the hair up to 3 times resulting in perfect shades of blonde that are completely customisable. The shampoo also successfully strengthens, cleanses, and hydrates to replenish the hair.

Features:
Sulfate and Paraben free formula, gentle enough to use for every shampoo
Neutralizes brassiness and brightens blondes and greys
Repairs broken bonds and restores hair to a healthier state