About the product
- NOW Sports products are comprehensively tested so you can trust that our products are pure and effective for every level of athletics.
- PROTEIN METABOLISM*/NITRIC OXIDE PRECURSOR*: Arginine supports protein metabolism and is heavily involved in muscle metabolism through its role in the maintenance of a proper nitrogen balance.*
- NITRIC OXIDE PRECURSOR*: Arginine supports protein metabolism and is heavily involved in muscle metabolism through its role in the maintenance of a proper nitrogen balance.*
- 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.
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