Protect and repair your locks with this Kérastase Resistance Ciment Anti-Usure - Vita Ciment Advance (200ml) Duo. Regular usage of this effective dual-action crème will reconstruct hair lengths and tips that have been worn out by external aggressions and blow-drying. Long hair will particularly benefit from the application of this advanced formula as it selectively repairs, reinforcing and reconstructing from the inside out according to the amount of damage in each strand. Aside from the internal repair, the external is protected and seals the rebuilt strands with the addition of Vita-Topseal mimicking the hair’s natural external layer. A hazelnut-sized amount of Kérastase Resistance Ciment Anti-Usure in the palm of the hand is enough to apply to your towel-dried hair. The result is the outer layer of your hair is left looking healthier, softer and feeling more natural than before. After application, maximum benefit will be gained by leaving the product in your hair for one minute before adding a little water to emulsify, then rinse out thoroughly.