Repair inner curl strength and restore your curl pattern with Redken's Acidic Bonding Curls Leave-In Treatment. Developed with 16% Bonding Care Complex and Citric Acid, this treatment has the highest concentration of the Bonding Care Complex, resulting in deeply nourished curls that are up to 12x smoother and easier to detangle. With heat protection up to 230°C, each curl strand is protected and conditioned. Powered by Curl Bond Technology, it's formulated with Citric Acid and Glycine that penetrate the hair cortex to build bonds and repair curl strength from the inside-out. This technology rebalances hair back to its healthiest pH, sealing the cuticle, and repairing damaged hair to build stronger hair bonds. The formula is also infused with natural oils, such as avocado oil, to help keep curls feeling hydrated. As a result, broken inner bonds are repaired from the inside, and the curl pattern is enhanced with natural movement. The range is sulphate-free for gentle cleansing and silicone-free for lightweight, bouncy curls which feel hydrated. Recommended for curl types 3A - 4C.