I don't know how this stuff works yet. Just got my shipment, and just tried my 4 pumps. I don't know if this is psychological or not, but I swear I got a bit of a buzz from it after a few minutes. The kind of buzz was like I wanted to go hit the gym, seemed like it gave me a bit of a energy boost.
Like I said, could be psychological. I am going to keep track of my progress, and we'll see what happens in 8 weeks. Got sustain for after the Derma.