Redken's Extreme Conditioner with Redken's exclusive RCT Protein Complex strengthens distressed hair, leaving it healthy and resilient. This fortifying deep conditioner treats the root, core and tip with its new smart, multi-targeted delivery system. Soy protein adds structure at the root of the hair, arginine helps maintain health at the core, and sepicap restores the look of the ends and prevents hair breakage.* Manage and treat tired hair with the complete professional products Extreme shampoo and conditioner hair care system. Suitable for color treated, natural, long and short hair.