Quench your skin with long-lasting hydration. CeraVe Hydrating Hyaluronic Acid Serum delivers intense moisture to help restore your skin’s natural barrier while doubling as a smooth, refreshing base for makeup.. Formulated with 3 essential ceramides and vitamin B5, this lightweight, non-comedogenic serum locks in hydration, soothes dryness, and leaves your skin feeling velvety soft from morning to night.