XERF is a non-invasive monopolar dual frequency radiofrequency treatment designed to support collagen remodeling and improve the appearance of skin laxity, firmness, and definition—without needles or significant downtime. Unlike RF microneedling, XERF delivers radiofrequency energy through the surface of the skin without penetrating it with needles. The treatment can target tissue at different depths, making it an option for patients concerned about changes in skin firmness, facial definition, and contour.