Kérastase Elixir Ultime L'Huile Original is a luxurious hair oil designed to deeply nourish and illuminate hair strands. This serum works to smooth the hair fiber, control frizz, and provide long-lasting shine, all without weighing the hair down. It is an excellent finishing touch to any haircare routine, offering protection against external aggressors while enhancing softness and manageability. Use a few drops on dry or damp hair, focusing on mid-lengths to ends, to instantly transform texture and visible radiance.