Kerastase Nutritive Oleo-Relax Leave-In Smoothing Serum smoothes dry, rebellious hair and makes it softer and smoother with long-lasting frizz protection. A few pumps on towel-dried hair will take those unmanageable, unruly locks from dry to shiny right before your eyes. Exclusive Nutri-huile complex contains beneficial Shorea Seed Butter and Palm oils to soften the hair fibers and provide deep nutrition to hydrate parched hair. Additional Cationic polymers ease tangles and while Silicone Gum helps to smooth the hair strands. Trade in your dry, dull hair for silky smooth strands with this leave-in treatment smoother from the Kerastase Oleo-Relax collection, it won InStyle Magazine's Best Beauty Buy winner "Best Straightening/Anti-Frizz Product".