CeraVe Hydrating Hyaluronic Acid Serum infuses the skin with moisture, delivering up to 24 hours of hydration while smoothing the skin’s surface. Formulated with vitamin B5 and three key ceramides, it helps to lock in moisture and restore the skin's protective barrier. Ideal for use on its own or in conjunction with other serums and moisturizers, this gel-cream serum replenishes hydration, enhances the skin barrier, and provides immediate smoothing and softening effects.