Therapy: 4 Technologies in one: Vacuum 940nm Near-Infrared Laser Bipolar F Rollers Infrared F Vacuum Roller technology combines infrared light, bi-polar frequency energy and vacuum, which cause deep heating of the fat cells, their surrounding connective tissue and the underlying dermal collagen fibers. This type of efficient heating and vacuum stimulates the growth of new and better collagen and elastin which results in localized reduction in skin laxity, body volume, and an overall improvement in skin structure and texture.