A custom blend formula with optimal concentration of low and high weighted hyaluronic acid molecules that bind moisture and replenish skin, providing long-term hydration and more supple-looking skin. The HYALURONIC SERUM is the most fundamental creation in Dr. Barbara Sturm's skincare line. Packed with an optimal concentration of low and high weighted Hyaluronic Molecules, it provides instant hydration at the surface and deeper skin layers. The low molecular weight Hyaluronic Acid penetrates deeper skin layers, leaving skin feeling firmer, refreshed and visibly more radiant for the long term. High weight Hyaluronic Molecules provide immediate intensive hydration to the surface layers of the skin. When used as part of your daily skincare routine, the HYALURONIC SERUM improves the skin matrix and acts as a super-hydrator, improving skin health and reducing the formation of wrinkles caused by dehydration. It's also the perfect travel companion after exposure to the sun and the elements, a