A serum with a strengthening complex to repair damaged hair | Wake up every morning with stronger and healthier hair. Once you apply the hair serum Redken Acidic Bonding Concentrate is immediately absorbed and begins to effectively repair the hair fiber. Frizz and brittleness will disappear and your hair will acquire a dose of hydration and a dazzling shine thanks to the content of citric acid and squalane. All this without leaving a greasy or excessively heavy sensation. Your hair will finally enjoy a treatment that will bring it back to life.