Kerastase Noctogenist Voile Nuit for Fine Hair is an overnight treatment that performs repairs and renews dull, dry, and distressed hair. This overnight formula for fine hair relies on Kerastase's unique Chrono-Active Complex technology to provide a protective shield, as well as nourish and improve blemished fine hair. The overnight treatment of Kerastase Noctogenist Voile Nuit includes the work of amino acids, which stimulates the roots and fibers to advocate renewed, healthy growth of hair, while vitamin E works alongside it to also promote growth, but also add some sheen and reduce hair loss. Micro-Lipids and Vita-Ciment work together to feed the hair fibers from the inside out, restore, and prevent splitting and breaking. This Kerastase overnight treatment takes the work out of struggling with limp or damaged fine hair. While you sleep this action packed formula works on your hair so you can wake up knowing you will gave bright, soft, and manageable hair. To reap the rewards of this treatment spray, apply to the hair before going to bed. This fast acting combination should be left in the hair overnight to allow it to penetrate the hair. There is no need to rinse in the morning as there will be no build-up or residue; you can just simply style as normal.