reporter kathy marshall shows us how they could help melt away the pounds. >> this is a new vang wish machine, and it could work miracles. >> it just feels like a warm, you know, like a heating pad kind of on the sides. otherwise, you don't feel anything. the metabolism slows down. now being in my upper 40s, it takes a bit longer to actually undo what i like to do, which is eat. >> the panels hover just above the midsection, not touching the skin. radiating heat through radio frequency. it causes heat to be transferred from the applicator to the patient's fat causing deep-tissue heating, the membranes and cells will then burst, yew body will absorb the fat and excrete it. >> reporter: the ideal patient is about 25 pounds over late and despite exercise can't lose weight. the site has 100 reviews of vang wish with 74% of patients say they were satisfied with the results. a woman in california writes -- her resistant fat was vanquished, but a man calls it a waste of money. this should have a healthy lifestyle, you'll see the best results with that. >> john will have a one-hour treatment

nbc's kathy marshall shows us how it works. >> this is the new vanquish machine for melting fat.t could perform miracles. >> it feels like a warm heating pad kind of on the sides. otherwise, i don't feel anything. the metabolism slows down. now being in my upper 40s, it takes a little longer to actually undo what i like to do, which is eat. >> reporter: the panels hover just above the midsection, not touching the skin. radiating heat at 110 degrees through radio frequency. >> it causes heat to be transferred from the applicator to the patient's fat, causing deep tissue heating. the membranes and the cells will then burst. your body will then absorb the fat and excreate it. >> reporter: the ideal patient, says the doctor is about 20 pounds plus overweight and despite exercise can't lose the bulge around the midsection or thigh. it has 74% of patients saying they were satisfied with results. a woman in california writers, her resist ant fat was vanquished. a 74-year-old man from dallas says it was a waste of money. >> it should be used with diet and exercise. you'll see the best re