Doctor's Best L-Arginine Powder helps support athletic endurance and helps boost nitric oxide production. L-Arginine also helps regulate blood pressure, helps improve cardiovascular health, helps support a healthy immune system, helps improve blood sugar regulation and helps support brain health. Nitric oxide is a powerful neurotransmitter that helps blood vessels relax and also improves circulation.

As you age, nitric oxide production falls. By the time you're 40, studies show you're only making about half or less of what you made when you were 20. This Doctor's Best item contains no added colors, flavors, fillers, additives or unnecessary ingredients. Vegan, Non-GMO and Gluten Free.

• Science-Based Nutrition
• Dietary Supplement
• Helps Boost Nitric Oxide
• Helps Support Athletic Endurance
• Vegan
• Non-GMO / Gluten Free

L-Arginine is an amino acid that has been shown to support  the cardiovascular system, promote vigorous heart function and enhance healthy  circulation throughout the body.  It is  required to synthesize Nitric Oxide (NO) in the human body.

Research suggests L-Arginine supplementation may also have  positive benefits on athletic performance through muscle protein synthesis.

• Helps boost Nitric Oxide
• Helps support athletic endurance