Product Details This is a Beyond Beauty product which means it has been sourced tried and tested and finally declared one of the most new and innovative heroes out there. OLAPLEX No.4P Blonde EnhancerToning Shampoo cleanses tones and repairs while keeping hair hydrated from roots to ends. This highly concentrated sulfate-free shampoo forms a rich lather to neutralise brassiness and boost brightness after one use. Suited for all blonde lightened and grey hairnatural or stylist-created root-to-tip or balayagethis non-drying formula can be rotated into any hair maintenance routine as needed for your best blonde yet. How To Use Apply to wet hair. Lather fully and let process 1-3 minutes. Rinse. For more intense toning leave on hair up to 5 minutes. Follow with No.5 Bond MaintenanceConditioner for everyday moisture or No.8 Bond Intense Moisture Mask for extra hydration. Use as needed to brighten unwanted brassiness. Full Ingredients Water (Aqua/Eau) Sodium C14-16 Olefin Sulfonate