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L-Arginine is one of 20 amino acids, the building blocks of protein.
L-Arginine is one of 20 amino acids, the building blocks of protein. Arginine supports the effect of exercise and is one of the most important amino acids for heart health.This maximum strength formula provides enough L-Arginine to support nitric oxide synthesis (NOS), which can help support healthy circulation and nutrient delivery to the cells.** Each caplet serving contains 1,000mg L-Arginine. Best taken on an empty stomach. Vegetarian.