Medik8's original hyaluronic acid serum floods multiple layers of the skin with multi-weight hyaluronic acid to leave it visibly plumped and supple, while effortlessly softening the look of fine lines. The lightweight, oil-free serum absorbs quickly for fast visible results that won't leave the complexion feeling greasy. Instead, it works to improve the skin's moisture retention and regeneration abilities for a cushion-soft, intensely hydrated and visibly replenished complexion.