Redken Acidic Perfecting Concentrate Leave-In Treatment is our most concentrated all-in-one formula for strength repair for all types of damaged hair. This conditioning leave-in treatment provides ultimate strength repair, intense conditioning and hair color fade protection. Featuring Citric Acid, this leave-in conditioner contains a concentrated bonding care complex that reinforces weakened bonds within your hair to improve hair strength. This leave-in conditioner repairs strength in damaged hair, provides heat protection up to 230 degrees Celsius, tames frizz, adds shine and reduces hair breakage. 56% less breakage* 82% less visible split ends** 11x smoother hair*** Heat protection up to 230° C pH balancing For all hair types and textures Ulimate repair, intense conditioning, and hair color fade protection