Nicknamed the "Double Chin Killer," the FDA just gave the greenlight to Kythera Biopharmaceuticals for their injection that reportedly eliminates fat cells just below the jaw.
ET's cameras were the first allowed to document the process called Kybella. Dr. Derek Jones helped develop the drug.
"There has never been an injectable option prior to this to treat this area other than surgical techniques as liposuction," Dr. Jones said. "The area is first numbed up, so the patient doesn't really feel too much pain. And immediately upon injecting it disrupts the fat cells. It destroys the fat cells, if you will. Over a period of time the double chin begins to slowly go away over a period of days to weeks."