Lightweight, fast-absorbing hyaluronic acid serum with HSA that provides multi-level, long-lasting hydration for refreshed, supple, and comforted skin. Hyaluronic Acid (HA) is among the most well-known hydrating ingredients, but it is most effective when combined with the premier hydrator, Senté's patented Heparan Sulfate Analog (HSA) molecule. HSA has been clinically shown to deliver deep hydration, improve skin-barrier function, and help soothe inflammation potentially triggered by low molecular weight Hyaluronic Acid. Together, Hyaluronic Acid and HSA provide instant and long-term hydration across all layers of the skin-and you can only find this cutting-edge ingredient pairing in Senté Hydrate Serum. Hydrate Serum is the first and only Hyaluronic Acid serum with patented Heparan Sulfate Analog (HSA) technology that delivers multi-level, long-lasting hydration, while alleviating the potential for irritation. Benefits: Delivers hydration to all layers of the skin Provides instant and long-term hydration Improves skin barrier function Soothes irritation Suitable for use immediately post non-ablative procedure Key Ingredients: Heparan Sulfate Analog (HSA) technology binds and retains water deep within the skin, supports healthy skin barrier function, and protects from inflammation caused by low molecular weight Hyaluronic Acid (HA), allowing HA to provide optimal hydration delivery. 4-forms of Hyaluronic Acid (HA), in both low and high molecular weights, function as water-replenishing sponges, providing immediate and lasting multi-level hydration