Not many.  We haven't been recommending it to our patients because the first 3-4 patients we did (with the new reengineered tips) had very disappointing results.  Theramge skin tightening still does not seem to work as well on the body as it does on the face (if done correctly).   Personally, I don't think it's worth the money you would spend on it.  If money is no object, then you might want to try it.   Dr. I