NOW Foods, L-Arginine, Double Strength, 1,000 mg, 120 Tablets

Concerning this item DOUBLE STRENGTH L-ARGININE: This non-GMO supplement comes in 1,000 mg pills and is double strength. NITRIRIC OXIDE DEVELOPER: A significant factor in blood vessel dilatation is arginine. CERTIFICATIONS AND CLASSIFICATIONS: Non-GMO, Kosher, Soy-Free Guaranteed GMP Quality: Because NOW has an NPA A-rated GMP certification, all aspects of its manufacturing process, including its laboratory and testing procedures (for potency, stability, and product composition), have been scrutinized. packaged in the United States since 1968 by a family-run business.