Take your haircare regime to the next level with Kérastase Blond Absolu Ciacanuit, a beautiful lightweight overnight serum that restores blonde hair. Formulated with a high concentration of hyaluronic acid and infused with precious edelweiss, this powerful serum works while you sleep to strengthen and hydrate sensitized bleached hair fibre, visibly reducing the appearance of split ends and leaving you with stronger, softer and shinier blonde hair. Simply apply before going to sleep on dry or towel dried hair, and wake up to luxurious blonde locks endowed with an irresistible fragrance of blooming flowers and citrus notes. No need to rinse out in the morning.