L'Oréal Paris Hair Serum Professionnel Xtenso Care L'Oréal Paris Professionnel Xtenso Care Hair Serum is specially designed for smooth and frizz-free hair, particularly for those who have undergone hair straightening treatments. This serum provides intense nourishment and protection, helping to maintain the straight, sleek texture of your hair. It works by sealing moisture into the hair, preventing dryness, and providing a shiny, glossy finish. The lightweight formula helps control frizz, reduces hair breakage, and ensures long-lasting smoothness. Ideal for maintaining the results of salon treatments, L'Oréal Paris Xtenso Care Hair Serum is the perfect solution for smooth, manageable, and healthy-looking hair.