La Roche-Posay Hyalu B5 Pure Hyaluronic Acid Serum is a hydrating and plumping serum that is suitable for all skin types. It contains hyaluronic acid, which helps retain moisture in the skin and improve its elasticity. This serum also contains vitamin B5, which helps soothe and repair the skin's natural barrier. With its lightweight and fast-absorbing formula, it leaves the skin feeling smooth, hydrated, and refreshed.