did you do a search there is some info that Xcel and myself posted in the past. The affects only last 2-4 days instant increase in size. Say you do bis. You can gain up to two inches in two days depening on how much you use. Its more for stretching the fascia or if you have a lagging bodypart at contest time if you want to chance it. It could make a muscle look flat or bloated looking and take away from its appearence.