Kérastase Sérum Oléo-Relax is a smoothing serum to discipline fine dry, frizzy, unmanageable hair. Its softening formula will leave hair silky smooth & more manageable whilst boasting incredible shine. Kérastase Sérum Oléo-Relax is formulated with Nutri-Huile Complex & Anti-Frizz Protection formula which work to smooth & nourish your dry, frizzy, unmanageable hair. Hair will benefit from enhanced softness & long-lasting volume & control.