Redken's Extreme Length Sealer with biotin strengthens damaged hair and helps hair to grow longer and stronger. The Extreme Length Sealer helps prevent breakage to promote your strongest, healthiest hair. When using Extreme Length's full system of shampoo, conditioner and sealer, you can help your hair to have a 81% decrease in breakage and 92% reduction of split ends visually. Key features: - 4% Length Care Complex - Cationic Conditioning Polymers & Silicone: For conditioning and shine - Biotin, Almond Oil, Cerimides & Vegetable Protein: For improved managability, reduced appearance of split ends, strength repair and smoothness *Please note Redken is currently in the process of updating their packaging. Packaging of this product is subject to variation from the visual shown.