The amount of AMP in it is radically underdosed. It should be 10x the amount/serving. I’ve messaged them about it, that it’s a totally insignificant joke amount, but AA doesn’t seem to care about anything besides profit.
That being said, taking a full cc (400mg L-Carn & the ATP in there) does seem to provide better endurance than carnitine solo preWO, so I would say the ATP makes the difference. Stampede is overpriced greatly, but it is a decent preWO boost.
Betterthroughbiology has solo ATP and I would definitely use them over AA for carnitine or glutathione, because the owner is a public coaching figure who is actually knowledgeable (he went after Tom Platz’s squat rep record a while back).
I got some straight L-Carn from real-peptides recently but won’t try it until I go through the old Behemoth stuff, so idk if it’s good or not. But it’s what Alex Kikel uses and it was affordable.