Arginine is one of the most important components of proteins that support the building and maintenance of muscle mass. AMIX Arginine is an amino acid that increases blood flow and muscle volume. AMIX Arginine is one of the best-selling products of this brand. The amino acid L-arginine is one of the most important components of proteins that support muscle formation and maintenance. This amino acid is an absolute staple ingredient in any kicker or pre-workout product. Regular intake of L-arginine helps build fat-free muscle mass, strength and endurance. Arginine also has a positive effect on sexual health and improves the function of the genital organs due to their blood supply.