Redken's Extreme Length Conditioner with biotin strengthens damaged hair and helps hair to grow longer and stronger. Extreme Length Conditioner helps prevent breakage to promote your strongest, healthiest hair. Reduce breakage by 81% when using the full system of Extreme Length Shampoo, Extreme Length Conditioner, and Extreme Length Leave-In Treatment Formulated with biotin and castor oil to help hair grow longer and stronger Provides lightweight nourishment to the hair Strengthens fragile strands and ends to promote strong, healthy hair Gently conditions the hair and adds shine
