OLAPLEX No. 4-P Blonde Enhancer Toning Shampoo New in Packaging OLAPLEX No.4-P Blonde Enhancer Toning Shampoo cleanses while adding hydration and repair. The sulfate-free formula offers customizable blonde maintenance, neutralizing brassiness and brightening blondes. The highly concentrated pigment allows customizable toning levels. The longer you treat, the brighter the toning results. Whether your blonde comes naturally or from your stylist, root to tip or balayage, even if you're proudly grey - this purple shampoo will help keep your color bright. THE DETAILS Suitable for blonde, lightened, and grey hair Vegan & cruelty-free 8.5 fl oz/ 250 ml Revolve Style No. OLAP-WU17 Manufacturer Style No. 20142192 Actual packaging and materials may vary. Please read labels, warnings, and directions before use. HOW TO USE Apply and massage product throughout hair, then rinse Follow with Olaplex No.5 Bond Maintenance Conditioner (sold separately) Pre-wash with No.4 Bond Maintenance Shampoo (sold separately) to remove product buildup OLAPLEX products are thoroughly tested in accordance with industry standards in-house and by independent third-party laboratories for safety and efficacy