It's no secret that we're fans of Dr. Sturm's Hyaluronic Serum. - Pure hyaluronic acid and antioxidant-rich purslane combine to promote an incomparably smooth and firm complexion. - A highly-concentrated blend of long and short-chain hyaluronic molecules instantly plumps fine lines while provides deep, long-term hydration for refreshed, radiant skin. - In this reformulated version, Lumicol adds a boost of radiance to the original formula, resulting in a smoother and more even skin tone.