Redken's Extreme Length Conditioner is formulated with Biotin and Castor Oil to fortify hair and reduce breakage to help you achieve your maximum hair length! Go longer with 81% less breakage* and visible results you can see in as little as 3 months. This lightweight, strengthening conditioner will hydrate and nourish hair to make it more manageable while promoting up to 6 inches of growth in a single year.