powerFULL of X-FActor

[BlueZR2Stud]

For all you guys that have taken either or both ,what have your gains been like and which one, in your opinion, is the over-all better supplement?

 

[jjohn]

I did XF three times now. I gained about 5 lbs. LBM with 1 inch reduction on my waist. This is the one you should look into IMO. A stack of both could be promising as well.