Kerastase Immersion Nutritive Pre-Shampoo Nutrition Replenisher is a lightweight pre-shampoo treatment for normal to extremely dry hair. This product gets rid of dryness, frizz and dehydration. It nourishes and protects hair cuticles from environmental damage. The smooth, non-greasy texture preps hair for shampooing and styling with heated tools. This product can be used daily or as needed. Hair shaft is visibly revitalized leaving hir smoother and shinier. Best for use before Kerastase Elixir Ultime Shampoo.