Hello all. I had a quick question. I have tried researching this but can't come up with a definitive answer. I was wondering if caffeine was a vasodilator or a vasoconstrictor. Or is it both. I only ask this because i wanted to find a cheaper source of energy BEFORE my workouts vs buying the expensive Noxplode or Jack3d. I thought taking straight caffeine supplements from true nutrition would do the trick. If it has only vasoconstriction qualities then i probably shouldn't be using it i suppose. Thoughts?
Thanks
Thanks
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