I use to use TRAC made by MHP it was a no loading phaze stuff worked real good for me. But hearing good things about V-!2 i decided to try it let me say TRAC ok but i dont think its as great as V-12. Since using V-12 my gaines have went crazy and my workouts are even more intence. You will notice big gaines in your bench press. However there is a warning sign posted on the label stating 8 wks on and 4 weeks off. P.S. theirs no loading with it eiter. SAN supplements are quality. my opiinion. Tear. IT. UP. Mad Dawg!