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Natural Factors L-Arginine 1000 mg supports healthy heart function, circulation, immunity, and healing. As a free-form amino acid, it is more effective than when obtained from food. It promotes the secretion of growth hormone and boosts the body’s nitric oxide production to relax blood vessels and improve blood flow.

  • 1000 mg tablets provide easily absorbed free form L-arginine.
  • Improves circulation by improving blood flow.
  • Supports performance and immune system of athletes and bodybuilders.
  • For use by those with stable a cardiovascular system.
  • Convenient 1000 mg tablets for easier dosing.


2 tablets 3 times daily or as directed by a health care practitioner.