I've used it, it does what it's suppose to do, expand the muscle facia via temporary enlargement of the muscle the facia is stretched, during a steroid cycle where new muscle fiber/hypertrophy is possible the oil will be absorbed eventually and in it's place is new muscle fiber..
so the theory goes.. it is possible, however my experience is the larger size is there, but the "feel" of the muscle is soft which i didn't like at all..
WIll i use it again?? sure, if i'm on cycle and bulking..
and that's how it's done..