A HIFU treatment can involve treatment to a number of areas. It can be used for facial contouring on the jawline, or to tighten up sagging skin on the cheeks. It can also be used around the eyes to reduce fine lines under the eyes, lift drooping eyelids, or to reduce crowfeet and laugh lines around the corners of the eyes. The neck and underchin area can also benefit from treatment with a HIFU machine, as can the chest or décolletage. HIFU treatment can also be used on the body. This includes abdomen, thighs and arms to firm and tighten loose skin.