NOW Foods L-Arginine 1000mg - 120 TabletsThis LArginine 1000 mg supplement provides a highstrength dose of LArginine, a conditionally essential amino acid involved in nitric oxide production, which helps widen blood vessels and support healthy blood flow. Arginine plays a role in cardiovascular health, protein metabolism, and endurance. It is often used by active adults and athletes to help support circulation, muscle performance, and recovery.* This formula is free from gluten, wheat,