This NOW Sports powder contains nothing but free-form L-arginine, an amino acid involved in protein synthesis and the body's nitric oxide pathway. A 2-level-teaspoon serving (about 6 g) supplies 6,000 mg of L-arginine, with roughly 76 servings in each one-pound container.
NOW suggests mixing it into at least 8 oz of juice or water, preferably on an empty stomach. It's produced in a GMP facility and not manufactured with common allergens like wheat, soy, milk, or tree nuts.














