Redken's Acidic Bonding Concentrate is a leave-in treatment that provides ultimate strength, repair, intense conditioning and hair colour fade protection. Featuring Citric Acid, this leave-in treatment contains a concentrated bonding care complex that reinforces weakened bonds within the hair to improve hair strength. It provides heat protection up to 450 degrees, tames frizz, adds shine and reduces hair breakage. This pH-balancing leave-in conditioner is specifically formulated with an acidic pH to defend against the negative effect of hair colouring, styling tools, and even water. The result? Hair that looks and feels healthy. pH balanced Who is it for? All Hair types Damaged, Coloured hair What does it do? Repairs and strengthens Reduces breakage Colour fade protection Heat protection up to 450 degrees Tames frizz Adds shine How do you use it? Use as a complete regimen with the Acidic Bond Concentrate Shampoo and Conditioner Apply to clean, damp hair Leave in and do not rinse Style as usual