Agree, but that is still a pre worjout product.
OP, why not look into a nootropic aid?
NootropiMax sounds like it would be up your alley. Each serving is 350 mg of caffeine, which is not a high amount, but when you combine that with all of the nootropics, the combination allows for a long, clean energy, and improves productivity a bunch as well.
Why are you looking for this type of product? Studying, productivity, work?