Source Naturals, Inc. L-Arginine 500mg 50 Capsule

L-Arginine is a crystalline free-form amino acid. It is an important factor in muscle metabolism and works to transport, store, and excrete nitrogen. It is also a precursor of guanidine-phosphate, phosphoarginine, and creatine, which are high-energy compounds found in muscles.

plays important role in muscle metabolism helps in the transporting, storing, and excreting of nitrogen