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L-Arginine is an amino acid that helps the body produce energy. It is important for heart and brain function and many other body processes. L-Arginine is an important precursor of Nitric Oxide.*

The Health Benefits

  • Vasodilation*
  • Supports Energy Production*
  • Supports Cardiovascular Health*


L-Arginine capsules manufactured by Superior Labs contain 3000mg pure L-Arginine with no magnesium stearate, dioxides, preservatives or other potentially harmful artificial ingredients of any kind.

This product is formulated, developed and manufactured in an FDA registered and GMP compliant facility, 3rd party inspected by a leading compliance authority for superior quality assurance.


L-Arginine Powder, L-Leucine Powder, Plant Cellulose (capsules), Organic Rice Extract

Ingredient Information


As a dietary supplement, adults take 5 capsules per day or as directed by your healthcare practitioner.


Do not exceed recommended dosage. Please consult a physician before consuming this product if pregnant or nursing, taking medication or have a medical condition. Not intended for use by individuals under the age of 18. Store in a cool, dry place. Do not use if safety seal is damaged or missing. KEEP OUT OF REACH OF CHILDREN.