The Ordinary Hyaluronic Acid 2% + B5 Face Serum is a water-based intensive hydrating facial serum that instantly hydrates and plumps the skin while smoothing texture and wrinkles. It is formulated with hyaluronic acid that retains moisture for longer and provides hydration to multiple layers of the skin surface, using low, medium and high molecular weight molecules, a HA cross polymer and hydrolyzed HA. The formulation also contains ceramides, which help lock in moisture and support the skin barrier, and pro-vitamin B5 which supports the formation of key skin barrier components like ceramides and fatty acids. This lightweight formula intensely hydrates the complexion and leaves skin feeling instantly smoother and more supple.