Hey advanced, i think you got something here. After sampling the product, im confident enough to say im going to buy a full sized one. The product left me with no jitterz and made me feel extremely energized. I even woke up and ran at 6 am the following day, which i haven't done at all this last few months. The downside was a very, very light headache but other than that i'd say just try a sample, can't go wrong with that.