

For damaged hair, apply this Redken Acidic Bonding Concentrate liquid mask after shampooing and leave on for 5 minutes. This formula delivers bond repair and hydration with 16% citric acid and conditioning care complex. It is a popular UK hair care product for all hair types including colour-treated hair.
Redken's Acidic Bonding Concentrate 5-Minute Liquid Mask provides bond repair for up to 3x stronger hair and instant hydration for dry and damaged hair. This intensely nourishing and hydrating mask is formulated with 16% Citric Acid, which enters hair fibres to strengthen hair, and Conditioning Care Complex. It offers up to 72 hours of hydration and 2x more shine as well as immediate strength repair. Suitable for all hair types and textures, including colour treated hair without stripping colour.
To use: Apply to wet hair from mid-lengths to ends after shampooing. Leave on for 5 minutes and rinse thoroughly. Use at least once per week or as often as needed. In between washes, use Acidic Bonding Concentrate Shampoo and Conditioner. For added bonding benefits, use with Acidic Bonding Concentrate Intensive Pre-Treatment as a pre-shampoo and Acidic Bonding Concentrate Leave-In Treatment with built-in heat protection.
Acidic Bonding Concentrate 5-min liquid mask vs. non conditioning shampoo
based on consumer test results