ACIDIC BONDING CONCENTRATE SHAMPOO Redken's Acidic Bonding Concentrate range feature the most concentrated all-in-one formulas for strength repair on all types of damaged hair. Featuring Citric Acid, this shampoo and conditioner set contains a concentrated bonding care complex that reinforces weakened bonds within your hair to improve hair strength. • Combats 1 year of visible damage in 1 use • 56% reduction in breakage • 2x stronger • 14x smoother • 90% more conditioned • 82% visible reduction of split ends • pH balancing • For all hair types and textures • Ultimate repair, intense conditioning, and color fade protection • Citric Acid, an alpha hydroxy acid, which helps reinforce weakened bonds in the hair