NOW Foods L-Arginine Powder provides pure L-Arginine in a versatile bulk powder form for those who want flexible dosing or use arginine in large amounts for athletic performance or cardiovascular support. L-Arginine is the primary substrate for nitric oxide synthesis in the body, and adequate arginine availability supports healthy blood flow, circulation, and vascular function. It is also a key amino acid for the urea cycle, immune function, and wound healing. This 1 lb bag provides an economical, extended supply for daily supplementation or pre-workout use.

Non-GMO. Free of common allergens and artificial additives.