From the Manufacturer's Label:
L-Arginine is a naturally occurring amino acid vital for a variety of biochemical reactions in our bodies, and is most notably a precursor of Nitric Oxide.
Manufactured by Natrol.
For more than 40 years, Puritan's Pride has helped families achieve a lifestyle of wellness. Our vitamins and supplements are made with care from the highest quality ingredients. They are tested or inspected as many as 15 times throughout the manufacturing process. That's why you can shop with confidence. We take pride in our products and helping customers feel their best.
No Yeast, Wheat, Corn, Milk,Egg, Soy, Glutens, Artificial Colors or Flavors, Added Sugar, Starch or Preservatives