- Nutritive 8h Magic Night Serum 90ml Take care of your hair while you sleep! This night serum deeply nourishes dry and damaged hair, providing up to 98% more strength after one night of use. Its formula contains anti-dryness niacinamide, which does not leave an oily residue. - Elixir Ultime L'Huile Originale 30ml Kérastase Elixir Ultime is an iconic hair oil, known for its ability to instantly transform the appearance of all hair types, providing intense shine, softness and deep nourishment. Feel the power of intense nourishment and long-lasting shine!