Now Foods L-Arginine is a conditionally essential basic amino acid involved primarily in urea metabolism and excretion as well as DNA synthesis. Now Foods L-Arginine is a double strength conditionally essential amino acid. Now Foods L-Arginine is a pharmaceutical grade vegetarian formula.
Conditionally Essential Amino Acid
Pharmaceutical Grade (USP)
What is the source of NOW L-Arginine? L-Arginine, like most amino acids, is a natural form of amino that is commonly produced by a simple fermentation process. It is a vegetarian/vegan product that is hypoallergenic.