This ultra-lightweight, heat-protective hair styling serum creates a satin shine and lasting style retention while reducing tangles and static. Plus, it provides immediate pollution protection. Pollutants can bind to hair and cause free radical damage that affects the appearance of hair health. No.9 shields hair from pollutants for up to 48 hours. How To Use 1. Apply a small amount to clean, damp hair working upward from ends to roots. Use more as needed for longer, thicker hair. 2. Style as usual. Air-dry for a soft texture. Blow-dry for a smooth finish. Diffuse for defined waves or curls. Ingredients: 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.