What is Thermage? Thermage FLX™ ® is a non-invasive radiofrequency (RF) treatment that smooths, tightens and contours the skin for an overall younger-looking appearance. It helps boost collagen, the scaffolding in our skin that gives it its firmness. As we age our collagen levels decline and we start to develop fine lines and wrinkles.   How does it work? Thermage uses heat from the radiofrequency it emits to target the cells within the skin to prompting them to produce more collagen. It causes an immediate tightening as excess water from the cells is released but over the next few months after…