Redken Extreme Duo Pack (1000ml) Strengthen, detangle, and distress damaged hair with Redken's Extreme Detangling Shampoo & Conditioner. This strengthening conditioner features Redken's innovative RCT Protein Complex to soften and strengthen hair and a fortifying complex to help protect and reinforce weak areas. Hair is left cleansed, with a supple, shiny finish. For best results, use with the Extreme Care System. Features: Detangles Strengthens and smooths Hair is left with a soft, shiny finish For distressed, damaged hair Fortifying complex to protect weak areas Gently cleanses Available in 2 sizes: 300ml & 1000ml