The old-fashioned push-up is one of the best ways to tone upper arms. "The closer together your hands are, the more you'll challenge your triceps," says Kirsch. If you've exhausted all the diet and exercise options and excess skin and fat are still an issue (as they can be after extreme weight loss), you may want to consider surgery, says Kolker.
Sleeve shapewear [nude], $64; slimpressions.com. Sleeve coverage [black], Ch'Arms, $30; hsn.com. Dress, Diane von Furstenberg.
"Kathy Najimy invented Ch'Arms to wear under sleeveless pieces because she had arm issues. I love it!"