Olaplex Nº.9 Bond Protector Nourishing Hair Serum is an antioxidant-rich hair serum that forms a protective barrier over the hair to prevent future damage. Powered by the Olaplex Bond Building Technology™ and rich in Red Algae Extract, Olaplex Nº.9 Bond Protector Nourishing Hair Serum is the ultimate solution for dull, damaged, and knotted hair. It protects the hair from pollution and daily environmental aggressors for 48 hours, fighting free radicals and delivering heat protection up to 450°F (232°C). Its weightless texture nourishes the hair and improves the detangling process, minimizes breakage, limits the appearance of statics, restores the hair's shine, and promotes a softer touch. The hair is left smooth, shiny, bouncy, resilient, and protected. Suitable for all hair types. Ideal for dull and brittle hair. Cruelty-Free. Gluten-Free. Paraben-Free. Phosphate-Free. Phthalate-Free. Sulfate-Free. Silicone-Free. Vegan. Benefits: - Nourishes and shields the hair from daily damage - Provides high and efficient heat protection - Detangles the hair and prevents split-ends - Provides anti-static benefits - Softens strands, restores bouncy curls, and adds shine As the first step in your styling routine, apply a small amount to damp hair working upward from ends to roots. Use more as needed for longer, thicker hair. Use on days you wash your hair and any days in between for added protection. Water (Aqua/Eau), Propanediol, Betaine, Quaternium-22, Sodium Hyaluronate, Bis-Aminopropyl Diglycol Dimaleate, Cetrimonium Chloride, Panthenol, Hydroxyethylcellulose, PVP, Guar Hydroxypropyltrimonium Chloride, Furcellaria Lumbricalis Extract, Pelvetia Canaliculata Extract, Xylitylglucoside, Polyquaternium-44, Anhydroxylitol, Maltitol, Citric Acid, Trisodium Ethylenediamine Disuccinate, Xylitol, Sorbic Acid, Phenoxyethanol, Ethylhexylglycerin, Sodium Benzoate, Fragrance (Parfum), Citral, Citronellol, Hexyl Cinnamal, Limonene, Linalool.