This Ultra-nourishing conditioner with Biotin & Castor Oil leave hair feeling soft, shiny and healthy. The Redken Extreme Length Conditioner is perfect for anyone who wishes to grow their hair (even while colouring or bleaching!), especially those with naturally fragile or damaged and prone to breakage hair, who feel like their hair never grows past a certain length. Contains Biotin to help strengthen the hair causing less breakage and allowing the hair to grow longer. The Redken Extreme Length Conditioner also helps prevent and reduce the look of split ends!