Discover a cutting-edge toning system with the Olaplex No.4P Blonde Enhancer Toning Shampoo. The shampoo offers customisable blonde maintenance, helping to neutralise brassy tones while intensely moisturising and brightening the appearance of hair.

Enriched with the brand’s original Bond-Builder System, the formula works to transform dry, brittle areas into a soft, visibly shiny finish. It helps to enhance manageability, while delivering an illuminating effect. Saturated with highly-concentrated pigments, the best-selling purple shampoo allows you to choose your toning level: the longer you treat, the brighter the results. Suitable for all-over colour, balayage or natural blonde styles.

OLAPLEX products are thoroughly tested in-house and by independent third-party laboratories for safety and efficacy. This product testing includes the industry standard Human Repeat Insult Patch Test (HRIPT), which tests for skin irritation or sensitivity. All of OLAPLEX products passed the HRIPT.

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