Acidic Bonding Concentrate sulfate-free shampoo is Redken's most concentrated all-in-one formula for strength repair on all types of damaged hair. 
BEST FOR:
• Damaged Hair
• All Hair Types & Textures
• Safe for Color-Treated & Chemically-Processed Hair
 
KEY BENEFITS:
• 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
• Ultimate repair, intense conditioning, and color fade protection
• Citric Acid, an alpha hydroxy acid, which helps reinforce weakened bonds in the hair