L-Arginine is a vital amino acid for numerous physiological functions. The body can produce it, but certain circumstances may prevent the production of the amount needed for a healthy body. L-Arginine is required to control waste, maintaining the chemical balance and produce creatine, which is important for muscle growth. Bodybuilders can benefit from this amino acid for better physical performance. The body uses Arginine to convert it to nitric oxide, which promotes relaxation of blood vessels and facilitates blood flow to the muscle during the workout. This feature helps increase muscle mass. L-Arginine can also help to eliminate ammonia, and stimulates the production of glandular substances necessary in the body. Features of L-Arginine Supplement Made in the USA Promotes production of nitric oxide Builds muscle Supports blood circulation Helps to reduce fatigue