Yep. From Lonnie Lowery:
I actually used something similar for the last few months and have been happy with the results. I'm pretty convinced it played a part in having the overwhelming majority of fat loss come from my waistline/love handles.
Lowery recommended wearing a lifting belt backwards to maintain warmth, but I tried it a few times and found it awkward. Instead, I applied a bit of topical capsaicin (same product pictured above. And it's only $8, not $80) and did a few sets of high-rep ab work before, and sometimes during, regular lifting sessions.
Only downside was learning by trial and error how much is too much. It is, after all, freaking capsaicin. Putting on too much at once or getting it on your hands burned like crazy.