Sabor?s low molecular weight Hyaluronic Acid Serum is a super small form of Hyaluronic Acid Serum that retains moisture down to the nano particle levels. This technology allows for increased absorption of the Hyaluronic Acid Serum into the skin, sealing in moisture at the topical level to help retain it for a longer time, while also penetrating the skin deeper to help improve the lipid barrier. We use the new cutting edge natural preservative which is Ecocert certified to be used in organic products.