Redken Acidic Perfecting Concentrate Leave-In Treatment is our most concentrated all-in-one formula for intense conditioning, heat prodection, reduced breakage and smoothing for all types of demanding, processed hair. Redken Acidic Perfecting Concentrate Leave-in Treatment provides heat protection up to 230 degrees, smoothes, tames frizz, adds shine and intensely conditions to help to reduce hair breakage. This pH-balancing leave-in Treatment is specifically formulated with an acidic pH to help to defend against the potential negative effects that can be caused by hair coloring, lightening and heat styling. The result? Hair that looks and feels healthy! Key benefits: •Up to 11x smoother hair* • Heat protection up to 230°C* • Up to 78% of split ends appear reduced*** * When used as a system of Acidic Bonding Concentrate Shampoo, Conditioner and Leave-in Treatment vs Classic Shampoo on bleached hair **When used as a system of Acidic Bonding Concentrate Shampoo, Conditioner and Leave-in Treatment *** Visual Grading. When using Acidic Bonding Concentrate Leave-In Treatment vs. classic shampoo on bleached hair