Used Zemits Bionexis Lite Ultrasonic Cavitation & RF Vacuum Machine. 4 in 1 machine. Zemits Bionexis Lite – the Full-Featured Slimming and Body Contouring Platform. This device helps to target stubborn fat deposits, improve skin tone, reduce signs of cellulite, and improve local blood circulation and skin appearance. Zemits Bionexis Lite helps to. Decrease appearance of stretch marks. Reduce edema and puffiness. Reduce fine lines and wrinkles.