Olaplex No.4P Blonde Enhancer Toning Silver Shampoo (250 ml.)

Where: Apply to wet hair, lather completely and leave in. When: 2-3 times a week or as often as needed to neutralize the unwanted copper colour. For: blonde, coloured and grey hair.

After this, you can use the OLAPLEX No.5 Conditioner for the best results.

Water (Aqua/Eau), Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Betaine, Glycerine, Sodium Cocoamphoacetate, Sodium Chloride, Acrylates Copolymer, Betaine, Phenoxyethanol, Fragrance (Parfum), Polyquaternium-7, Guar Hydropropyltrimonium Chloride, Ethylhexylglycerin, Bis-Aminopropyl Diglycol Dimaleate, Hexyl Cinnamal, Limonene, Citric Acid, Sodium Benzoate, Acid Violet 43 (CI 60730).