Redken Extreme Conditioner strengthens damaged hair, leaving it healthier-feeling and resilient. This fortifying deep conditioner on dry, damaged hair treats the root, core and tip of the hair through the proprietary Strength Complex. Formulated with Citric Acid, Amino Acids and Arginine, hair will be strengthened and fortified while returning hair to its healthiest pH. For superior results, use after Extreme shampoo.