The Acidic Bonding Concentrate set targets hair weakened by color, heat or chemical services. The 7% shampoo + 11% conditioner help reinforce bonds, smooth the fiber and rebalance pH, while One United adds daily protection and easy detangling. Helps reduce breakage and improves strength Smoother cuticle, silky feel and lasting shine Multi-benefit protection without heaviness SET CONTENTS: Redken Acidic Bonding Concentrate Shampoo — 300 mL / 10.1 fl. oz. Redken Acidic Bonding Concentrate Conditioner — 300 mL / 10.1 fl. oz. Redken One United All-In-One Multi-Benefit Treatment — 30 mL / 1.0 fl. oz. HOW TO USE Apply Shampoo to wet hair, lather and rinse. Follow with Conditioner, leave on 1–3 minutes and rinse. On towel-dried or dry hair, mist One United on mid-lengths and ends, comb through. Do not rinse.