Acidic Bonding Concentrate Intensive Treatment is Step #1 (pre-shampoo) of Redken's most concentrated system ever with citric acid. Redken’s Bonding Care Complex provides ultimate strength repair, intense conditioning, and color fade protection in all types of highly damaged or processed hair.
 
• This pre-shampoo treatment reinforces weak bonds to visibly transform the most damaged hair in only 5 minutes.
 
• The Acidic Bonding Concentrate system combats 1 year of visible damage in 1 use*
 
• Intensive strength repair-inside and out!**