works frighteningly fast and effective
it boosts your endurance, I would reckon even, from a single dose (10mg) before your running or any other kind of endurance activity. Unconciously I put it to a test on the 3rd day which was supposed to be just my regular running (route, distance and speed). I could run wayy faster and didn't have to breathe heavily afterwards or felt my lungs burn. It 'was just a walk in the park' literally
This is no placebo because the difference is simply too much to 'blame' it on. You'll know what I'm speaking of if you give it a shot