Advance Nutratech Combo Arginine Aminos Pre-workout 200gm unflavoured Raw Powder with Shaker. Advance Arginine is an amino acid that plays an important role in several important pathways, including the synthesis of proteins, the production of creatine phosphate, production of Adenosine Triphosphate (ATP), and the synthesis of nitric oxide, a secondary messenger involved in blood flow. This chemical messenger plays a vital role in vasodilatation, relaxation of smooth muscle cells within arterial blood vessels. Dietary L-Arginine provides the nitrogen to our bodies for improved muscle metabolism and promoting immune function.