NOW L-arginine 500mg 100 capsules.

NOW L-Arginine 500mg provides the conditionally essential amino acid arginine in its free L-configuration for efficient absorption and utilization.

Arginine is a direct precursor to nitric oxide (NO), which promotes vasodilation and improves blood circulation. It also supports the urea cycle, immune function, and protein synthesis. Athletes use it to increase muscle pumps and blood flow during exercise.

Each capsule contains 500 mg. The usual dose is 2-4 capsules (1-2 g) taken 30-60 minutes before exercise or with a meal for cardiovascular support. Bottle contains 100 capsules.