Quote:
Originally Posted by daaznfob
I have tried them mostly for the boost they give you (caffeine mostly) and some give your muscle a sort of a pumped look during the gym. If you have money to spend try them out. If not dont waste your money.
They claim to work by opening your blood vessels and increase blood flow (increasing more nutrients to muscles). Usually products like this contain alot of caffeine to get you pumped before the gym. But caffeine counter acts this process because it decreases blood flow. So if you would like to try it, either get one without caffeine, search amino acid L-arginine(pumps your muscles, cheaper). Or even try decaf green tea and cayenne pepper before the gym(increase blood flow, some use as herbal viagra)
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I have tried a couple of these... really its about finding one that works for you. Muscle Prime has been the best for my friends and myself. But a couple guys i know like black powder and no explode.
Just go to a GNC and ask for samples of them and they will usually be able to give you a few to try to figure out which one you like best