About The Range - Kérastase Elixir Ultime. Discover Kérastase Elixir Ultime, a collection of hair care products enriched with beautifying oils. Utilising four precious oils including Argan Oil, Maize Oil, Camellia Oil and Pracaxi Oil, in the Elixir Ultime formulations, hair is left looking radiant. Elixir Ultime is the iconc routine for extremely shiny hair. With the beautifying power of precious hair oils at the heart of its formula, it leaves hair soft, healthy and incredibly radiant. Product Overview Beautify the appearance of dull hair with the Kérastase Elixir Ultime L'Original Hair Oil 100ml. The nourishing, shine-enhancing oil revives and smooths the hair fibre for a sleek and perfected finish. This long-lasting frizz control and heat protection easily blends into your hair for instant shine. Product Benefits This all-star leave-in hair oil provides beautifying care for dull hair with heat protection for up to 230°. It helps seal the appearance of split ends and smooths the hair fibre for long-lasting frizz control. Hair is instantly refined with a visible and intense shine .