Hyaluronic acid, also known as hyaluronan or HA, is a molecule that occurs naturally in our bodies. It not only renews skin tissue, but also supports healthy cartilage and joint function. Unfortunately, with age and exposure to sun and pollution, HA levels in the body decrease significantly. However, it is possible to artificially synthesise this miraculous little molecule, which is now being leveraged by the aesthetic industry to enhance facial volume and reverse the signs of ageing.