I had hair all over the chest, stomach and some on the shoulders (I said that I had the very white skin and big black hairs). After 4 sessions max power every 2 or 3 weeks, I have a few little hairs by here and there and around the nipples (which can not flash because the skin is red there). Otherwise it does not grow back elsewhere. I missed the first session because I think I was too spaced flashes, I found myself with a grid of small holes beardless! Since I try to go about it very methodically and I do not hesitate to superimpose flashes.
I do not think it makes perfectly smooth and hairless but this greatly reduces hair for very hairy men. I am satisfied with my investment.