i just got vitasports NOC (nitrix oxide complex) and they're tablets but someone told me to take it back and get a powder NO product because tablets dont work.
The only person who knows/will know what works for you is you. And, it is your money. Do a little research into the product and/or the manufacturer. Most importantly though, carefully read the label. Pay attention to use instructions. (Is there a loading phase? etc...) After doing your readings, ask yourself: Will this product help me in reaching my goal?