L-Arginine is a powerful nitric oxide precursor that supports exercise endurance, increases blood flow, and muscle pumps while working out.*
- 1000mg L-Arginine per serving
- Fully transparent & premium L-Arginine HCL source
- Take alone or stack with 3XT Power, 3XT Max Energy, or Amino Stim for a high performance pre-workout.
L-Arginine is a conditionally essential amino acid that acts as a nitric oxide precursor. Nitric oxide is known to increase blood flow which helps promote increased vasodilation and nutrient delivery. USN L-Arginine contains 1000mg from the premium HCL source for fast absorption.
As a dietary supplement, take 1 serving (2 capsules) with a glass of water daily.