Arginine is one of 20 amino acids that are the building blocks of proteins. Arginine can serve as a source of energy and is involved in various pathways throughout the body. Arginine supports exercise effects and is one of the important amino acids related to immune function. Simply put, the acidic arginine in the blend goes a long way toward converting into the beneficial small molecule nitric oxide; we know how important it is to take care of your vital organs, which is why our arginine supplements are specially formulated to Supports overall circulation; each carbon monoxide molecule relaxes blood vessels, allowing oxygen to flow more freely through the body. Say “Yes” to Nitric Oxide; join our customers who can’t get enough of a nitrogen supplement for all-day energy, increased physical endurance, better post-workout muscle recovery, and overall circulatory health from head to toe.