CoolSculpting, cryolipolysis, fat freezing, whatever you call it, was built to target fat cells. But after menopause, women lose up to 30% of their skin collagen in just five years.
That's why your arms changed. Not because of fat. Because the collagen that kept your skin firm, tight and smooth, simply isn't there anymore.
You can freeze all the fat cells you want. If collagen loss is the problem, fat removal will never be the answer.