A simple solution for the increasingly common problem of "double chins".

MedSafe has approved an injectable acid, which can remove the pad of fat that builds up under the chin.

About half of adults report some kind of "double chin".

The Skin Institute's Dr Sarah Hart told Mike Hosking the injection process only takes about 10 minutes.

"It's not a walk in, walk out treatment. Often you would not want to go back to work immediately afterwards but the good news is that it doesn't require any surgery."

The process costs upwards from $3000.

LISTEN ABOVE AS SARAH HART SPEAKS WITH MIKE HOSKING