L-Arginine is an amino acid that the body uses to make proteins. While this role may sound simple, L-Arginine is actually critical for life itself! L-Arginine delivers the power of this critical amino acid in highly absorbable, quick release capsules. L-Arginine promotes production of nitric oxide, which opens up blood vessels while supporting healthy blood pressure already in a normal range.** Thanks to its circulation-boosting properties, L-Arginine is sometimes used to help optimize peak sexual performance in men.** Its vascular benefits are also associated with improved stamina, supercharged athletic performance and better muscle mass.** L-Arginine also supports healthy immune function and better overall cardiovascular health.** Up your amino acid intake with L-Arginine and reap the benefits of healthy circulation and superior stamina!**