Without seeing you in person, it is impossible to say. My best advice would be for you to schedule an in-person consultation with a Board-Certified plastic surgeon in your area who offers the full range of non-surgical and surgical procedures. An RF energy treatment such as TempSure can be a fantastic treatment for addressing all of your arm issues, but it is really going to depend on the severity of your sagging skin. Also, if there is a moderate to large degree of excess fat, it may be best to combine the RF with a non-surgical fat reduction technique such as SculpSure or surgical liposuction.