Now has twice the L-Arginine (1,000 mg. per tablet) dosage
Arginine is a conditionally essential basic amino acid and plays an important role in the dilation of blood vessels*
L-Arginine used in this product is pharmaceutical grade
NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).