"My heels went rough and dry in my late 50s, kind of out of nowhere, and I spent two years thinking I'd just let myself go. I rolled my eyes when this popped up — I've bought the junk TikTok gadgets before. But the guarantee made it easy to risk. First use I actually gasped. It's not a gimmick, it just works. Turns out it was never me, it was my skin changing."