Kerastase Genesis Reconstituant Hair Mask provides moisturizing and intense nourishment to the hair without weighing it down, by its formula rich in beneficial oils and nutrients. Facilitates handling and targets damaged areas of hair to strengthen them. The hair is uniform, supple and shiny. If you want an intensive care for your hair, Kerastase Genesis Reconstituant hair mask is the perfect choice. It makes it easier to untangle strands and accurately targets damaged areas of hair to repair and strengthen them. The result will surprise you. Your hair will be even, supple and shinier than ever.