How does it work? Purple colour is the opposite to yellow on the colour wheel. The purple within the Purple shampoo formula helps neutralise those undesirable yellow tones.

Product Ingredients: 1217039 A, Aqua / Water, Cetearyl Alcohol, Behentrimonium Chloride, Cetyl Esters, CI 60730 / Acid Violet 43, CI 45100 / Acid Red 52, Sodium Hydroxide, Phenoxyethanol, Trideceth-6, Chlorhexidine Digluconate, Limonene, Linalool, Benzyl Salicylate, Benzyl Alcohol, Benzophenone-4, Amodimethicone, Isopropyl Alcohol, Alpha-Isomethyl Ionone, Citric Acid, Citronellol, Cetrimonium Chloride, Coumarin, Amyl Cinnamal, Parfum / Fragrance, (F.I.L. C228727/1)