USN L-Arginine is a powerful nitric oxide precursor that supports exercise endurance, increases blood flow, and muscle pumps while working out.*

KEY FEATURES:

• 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.

Directions: As a dietary supplement, take 1 serving (2 capsules) with a glass of water daily.