Redken Acidic Bonding Concentrate Shampoo is Redken's most concentrated all-in-one formula for strength repair for all types of damaged hair. This ultra-rich and luxurious sulfate-free shampoo provides ultimate strength repair, intense conditioning and color fade protection. Featuring Citric Acid, this shampoo contains a concentrated bonding care complex that reinforces weakened bonds within your hair to improve hair strength and resiliency. 
Key Benefits:
56% less breakage*
82% less visible split ends**
11x smoother hair**
pH balancing
For all hair types & textures
Ultimate repair, intense conditioning & color fade protection
Contains Citric Acid, an alpha hydroxy acid, which helps reinforce weakened bonds