If you seek tighter, firmer, more youthful skin anywhere on your body, RF can be used to your benefit. Popular facial treatment areas include: skin under the neck, jowls, eyebrows, and around the eyes (to treat crow’s feet). If you are someone who has lost a lot of weight, RF can be used to reduce the sagging appearance of excess skin. Popular areas of the body to apply treatment include: chest, arms, abdomen, thighs, lower legs.