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l-Arginine supports nitric oxide formation, important for healthy dilation of blood vessels, circulation, and blood flow. In trials, l-arginine has demonstrated the potential to support endothelial function in blood vessels, platelet function, exercise tolerance, and sexual function. Because of its effect on nitric oxide production, l-arginine is theoretically best avoided by individuals with migraines, depression, autoimmune disorders, and kidney or liver disease. l-Arginine is contraindicated for individuals with the herpes virus.


  • l-Arginine
  • Supplemental Facts
  • Amount Per Serving
  • two vegetarian capsules contain:
  • calories - 5
  • l-arginine HCl (free-form) - 1
  • 400 mg.

Other ingredients:

  • vegetarian capsule (cellulose
  • water) - 2 capsules
  • 1-3 times daily
  • between meals.


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