L-Arginine is a naturally-occurring basic amino acid which participates in many important biochemical reactions associated with the normal physiology of the organism. Arginine power is the purest form of L-Arginine produced by exclusive Fermapure TM technology. L-Arginine has several roles in the human body. Research has shown that consumption of 1 to 2 grams of L-Arginine daily, with weight training, a greater decrease in body fat was obtained after only five weeks. L-Arginine is also a necessary amino acid to increase protein synthesis, which in turn promotes the cellular replication. Thus, Arginine helps people with inadequate numbers of certain cells. When L-Arginine metabolizes, it produces nitric oxide (NO). Nitric oxide keeps the blood vessels dilated, in turn helping the heart to receive an adequate oxygen supply. To Summarize, the scientists at Ultimate Nutrition think that L-Arginine is an unbelievable amino acid that offers numerous benefits to the human body. Ultimate Nutrition´s arginine power capsules are manufactured under strictest quality control to guarantee your satisfaction.