Indulge in this luxurious, limited edition hair serum for all hair types. Featuring an exquisite blend of iris root extract, niacinamide, and an array of vitamins—including the hair-nurturing Vitamin E—this elixir deeply replenishes and readjusts hair's nutrient levels. Over the span of 8 hours, this serum enters the hair fiber, reversing daytime depletions and gifting hair with a lustrous, youthful appearance. Pamper your locks with this overnight beauty sleep nourishing serum for dry hair. Gift yourself or a loved one with this set which includes Kérastase's iconic Bain Satin and Nectar thermique in convenient, travel sizes.