Redken Acidic Bonding Concentrate Shampoo is Redken\'s most concentrated all-in-one formula for all hair types and textures. This ultra-rich and luxurious shampoo provides intense conditioning, reduced breakage and colour fade protection. Featuring Citric Acid, an alpha hydroxy acid within Redken\'s concentrated bonding care complex that conditions to help protect weak bonds and helps to improve hairs strength and resiliency after a bleach or colour services. This pH-balancing shampoo is specifically formulated with an acidic pH to help to defend against the potential negative effects that can be caused by hair colouring, lightening and heat styling. The result? Hair that looks and feels healthy! Key Benefits: - Up to 56% less breakage* - Up to 76% of split ends appear reduced** - Up to 11x smoother hair*** System tames frizz and adds intense shine. - pH balancing for colour fade protection - For all hair types and textures - Citric Acid, an alpha hydroxy acid, which conditions to help protect weak bonds * Brushing Test. When used as a system of Acidic Bonding Concentrate Shampoo and Conditioner vs. Classic Shampoo on Bleached Hair ** Visual Grading. When used as a system of Acidic Bonding Concentrate Shampoo, Conditioner and Leave-In Treatment vs. classic shampoo on bleached hair *** When used as a system of Acidic Bonding Concentrate Shampoo, Conditioner and Leave-In Treatment