Olaplex No.4P Blonde Enhancer Toning Shampoo 1000ml is a professional-strength purple shampoo designed to brighten blonde, grey, highlighted, and lightened hair while helping repair damage. Its highly concentrated violet pigments neutralize unwanted yellow and brassy tones, leaving hair looking cooler, brighter, and more vibrant after every wash. Powered by Olaplex Bond Building Technology, it helps strengthen fragile hair, reduce breakage, and improve softness without stripping away moisture.

The gentle, sulfate-free formula cleanses the scalp and hair while maintaining hydration and shine, making it suitable for natural blondes, colour-treated hair, balayage, highlights, and grey hair. With regular use, hair feels smoother, stronger, and easier to manage while maintaining a fresh salon-toned appearance. The large 1000ml salon-size bottle is ideal for professional use or long-term home care. For best results, use once or twice a week or as needed and follow with Olaplex No.5P Blonde Enhancer Toning Conditioner.