• Energy and Cardiovascular Support
• Food supplement
• Supports Sports Performance
• Pairs with Methionine and Glycine to Aid The Making of Energy in Your Muscles
• Supports Blood Pressure Already within a Normal Range
• Science-backed quality since 1969

Get fundamental amino acid nutrition for less with Swanson L-Arginine. Our L-arginine makes an economical and effective addition to your dietary plan, especially if you are interested in supporting cardiovascular and immune system health. Each convenient capsule delivers 500 mg of free-form L-arginine.

As a dietary supplement, take one capsule one to two times a day with water.

• L-Arginine Support helps support nitric oxide production and healthy blood flow.
• Workout Performance helps support endurance and exercise performance.
• Circulation Support helps support cardiovascular wellness and circulation.
• Muscle Recovery helps support post-workout recovery and physical performance.
• Amino Acid Formula provides convenient daily L-arginine supplementation.