ESSENTIAL AMINO ACID: Each capsule provides 1000mg of L-Arginine, a crucial amino acid that serves as one of the fundamental building blocks of protein. This essential nutrient contributes to the synthesis of proteins necessary for muscle health* EXERCISE PERFORMANCE: Enhance your fitness routine with this amino acid, a nitric oxide precursor that boosts circulation and nutrient delivery to active cells during workouts. Support exercise performance and reach your fitness goals more effectively* HEART HEALTH SUPPORT: L-Arginine also plays a role in supporting heart health, contributing to coronary blood flow and vascular function* LIVE BOLDLY, AGE GRACEFULLY: For over 50 years, Puritan's Pride has provided premium-quality supplements at exceptional value. Embrace vitality and wellness at any age. With Puritan's Pride, feel your best and live boldly each day