La Roche-Posay Hyalu B5 Hyaluronic Serum is a hydrating serum designed to plump and rejuvenate the skin. Formulated with a combination of two types of hyaluronic acid, it provides intense hydration and helps to replenish the skin's moisture levels. The serum also contains vitamin B5, known for its soothing and skin-repairing properties, enhancing the overall texture and appearance of the skin. Suitable for all skin types, including sensitive skin, this lightweight, fast-absorbing formula helps reduce the appearance of fine lines and leaves the skin looking smoother and more radiant.