Last summer, when Kim Campbell put on her first sleeveless dress of the season, she noticed sagging and dimpling on her upper arms. “I tried firming creams, spent a lot of money and saw no results,’’ says the 52-year-old Astoria resident, who works in optical sales. “I knew surgery left scars and I didn’t think anything else could be done, so I started wearing cardigans over everything.’’

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