"For the neck and jowls, move the roller downwards from ... tone the muscles in the neck and jawline, giving a natural but temporary lift". There are plenty of tutorials on YouTube.
Meanwhile, injectables for jowls typically involve dermal fillers. Instead of tightening loose skin, these fillers add volume to help lift, sharpen, and give your jawline a firmer look.
Jowls mainly form due to the natural aging process ... This is often called a Nefertiti Lift, named for the queen of the 18th Dynasty of Ancient Egypt's sharp jawline. "Additionally, strategically ...