You don't "need" it, though it's a useful driver if you will, of creatine into the muscle cell.5.0stang wrote:My understanding is that you do not need GPA/TMG. Let Rob confirm that though.
I've used it with and without. It's certainly better with TMG, in the absence of Kre-Anabolyn. Still, it's not going to make or break you. If it's available, grab it.
If not, don't worry about it...