Windmill's L-Arginine provides you with 500 mg of L-Arginine per capsule. L-Arginine can serve as a source of energy, and supports the effect of exercise.* One of the most important amino acids involved in the health of your immune system.*

All Windmill supplements are manufactured in the United States in an FDA-inspected facility whose GMPs (Good Manufacturing Practices) are independently verified by qualified certification organizations.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.