Combat 1 year of visible damage in 1 use with Redken's award-winning professional bond repair range Acidic Bonding Concentrate. Redken Acidic Bonding Concentrate Shampoo is a concentrated all-in-one formula for all hair types and textures. This ultra-rich and luxurious shampoo provides intense conditioning, reduced breakage, and color fade protection. It features Citric Acid, an alpha hydroxy acid within our concentrated bonding care complex, that conditions to help protect weak bonds and helps to improve hairs strength and resiliency after bleach or color services. This pH-balancing shampoo is specifically formulated with an acidic pH to help defend against potential negative effects caused by hair coloring, lightening, and heat styling. The result is hair that looks and feels healthy.