Water (Aqua, Eau), Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Betaine, Glycerin, Sodium Cocoamphoacetate, Sodium Chloride, Acrylates Copolymer, Betaine, Phenoxyethanol, Fragrance (Parfum), Polyquaternium-7, Guar Hydroxypropltrimonium Chloride, Ethylexylglycerin, Bis-Aminopropyl Diglycol Dimaleate, Hexyl Cinnamal, Limonene, Citric Acid, Sodium Benzoate, Acid Violet 43 (Cl 60730)OLAPLEX No.4P Blonde Enhancer Toning Shampoo strengthens, softens and neutralizes unwanted yellow tones for brighter hair. The sulfate-free, highly concentrated formula allows for customizable toning...the longer you treat, the brighter the results. 3x brighter compared to top purple shampoos. - Vegan - Cruelty Free - Paraben Free, Sulfate Free - Phosphate Free - Colour Safe - All hair types All OLAPLEX products contain our patented technology, strengthening fragile bonds with every step of the routine for the healthiest hair possible. How to use: Apply to wet hair. Lather fully and let process 1-3 minutes then rinse. For more intense toning, leave on up to 5 minutes. Tone then hydrate: - No.5 Bond Maintenance Conditioner for lightweight moisture - No.8 Bond Intense Mask for intense moisture - 4-in-1 Moisture Mask for professional-strength hydra