If you’re an active individual then Arginine should be on your short list of required amino acids.

Arginine is heavily involved in muscle metabolism through its role in the maintenance of a proper nitrogen balance, and you’ll find the majority of your body’s arginine in the skin and other connective tissues where it’s most useful.*

Arginine is also important for healthy immune system function and liver detoxification.*

View by category: Amino Acid Powders, Branched Chain Amino Acids (BCAA) Supplements, L-Arginine, L-Carnitine, L-Citruline and L-Glutamine

*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.


NOTE: New NOW® Sports labels have been shipping to stores but you may still see some of our old labels in stores and on our website until remaining inventory is sold out.