Introducing Acidic Bonding Concentrate 24/7 Night & Day Serum, Redken’s 1st bonding serum for 24/7 hair repair that never sleeps. This revolutionary serum delivers unparalleled bond repair and protection for damaged hair. Tossing and turning in bed, and rubbing against the pillow nightly may cause friction that stresses the hair fibre, resulting in hair damage. The groundbreaking formula harnesses the power of Citric Acid, penetrating 7 layers deep to help strengthen and combat daily and nightly damage. Combined with the high leave-in concentration of Polyglutamic Acid and Squalane, this serum magnetises to the hair to prevent breakage and help to repair the hair fibre, creating a long-lasting shield against aggressors.

Combat daily damage overnight and wake up to visibly healthier, stronger, 3x softer*, and 11x shinier hair** with up to 89% less breakage*. This lightweight serum absorbs immediately into the hair upon application leaving no visible residue, leaving hair smooth and soft after just one use. 92% agree hair looks and feels healthy after 24 hours.

Beyond its powerful repair properties, this serum elevates your hair care ritual with its captivating fragrance. A blend of Acidic Bonding Concentrate’s signature citrus scent and soothing lavender notes creates a luxurious and relaxing experience, perfect for both daytime and nighttime application. For damaged, processed hair of all hair types and textures, Acidic Bonding Concentrate is your ultimate solution for hair that needs intense repair and protection.

To use: Transform your hair round-the-clock, night and day. Designed for both daytime and nighttime repair, this serum is your secret weapon for healthy-feeling and radiant hair. Apply to mid-lengths and ends of hair, start with 2 pumps and add more as needed.

Apply to damp hair after washing for immediate smoothness. Or for a deep overnight treatment, apply a few pumps to dry hair before bed. Reapply day and night as desired to maintain enviable, healthy-looking hair in between washes. Everyone's hair has different needs; some may wish to apply only once, while others prefer to reapply or layer.

For the best results, use as a full regimen with Acidic Bonding Concentrate Shampoo, Conditioner and Leave-In Treatment. In case of contact with the eyes, rinse immediately.