L-Arginine AKG (Alpha-Ketoglutarate) is a semi-essential amino acid. It is a precursor to Nitric Oxide, meaning Arginine AKG is needed for N.O. to form. So, in reality, Arginine isn't a N.O. booster, but rather a N.O. catalyst. Great for Pre-Workout. Acts as a powerful hemodialator, improving blood flow to the muscles.
