Has anyone used X Factor?
www.******************.net
I read that it is the rate-limiting step in muscle growth.....???
Does it work at all???
The following was a study preformed at Bylor University
Performance and body composition changes after 50 days of concomitant arachidonic acid supplementation and resistance training.
http://www.sportsnutritionsociety.or...1-S1-29-06.pdf
Poster 18