Kerastase Nutritive 8H Magic Serum is an overnight nourishing treatment designed for dry hair. This non-greasy formula intensively conditions the hair while you sleep for long-lasting nourishment. Kerastase 8H Magic Serum consists of iris root extract and a cocktail of 5 essential vitamins, which allows 100% overnight absorption. Enriched with a beautiful fragrance that develops while you sleep, Kerastase 8H Magic Serum will leave hair feeling soft, easy to style, lightweight, and luxuriously nourished with long-lasting effects.