Glossier Super Bounce Hyaluronic Acid + Vitamin B5 Serum is a hydrating and plumping serum that helps improve the skin's moisture levels. It contains hyaluronic acid, which attracts and retains moisture in the skin, and vitamin B5, which helps soothe and nourish the skin. This serum has a lightweight and silky texture, making it suitable for all skin types. It can be used alone or layered with other skincare products for added hydration.