CONDITIONALLY ESSENTIAL AMINO ACID: Arginine is a conditionally essential basic amino acid involved primarily in urea metabolism and excretion, as well as in DNA synthesis and protein production*
NITRIC OXIDE PRECURSOR*: Arginine plays an important role in the dilation of blood vessels*
GMP Quality Assured: 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)
Packaged in the USA by a family owned and operated company since 1968
