L-Arginine Powder 1 lb by NOW

Arginine is a conditionally essential basic amino acid involved primarily in urea metabolism and excretion, as well as in DNA synthesis and protein production.* It is an important precursor of nitric oxide (NO) and thus plays a role in the dilation of blood vessels.*

Natural color variation may occur in this product.

This product is sold by weight not volume.

NOW® L-Arginine is pharmaceutical grade.

• Pure Powder
• Protein Metabolism*
• Nitric Oxide Precursor*