Research shows that L-citrulline supplements can raise body levels of L-arginine. In fact, some older animal studies show that L-citrulline may be more effective at increasing arginine levels than ...

Look for supplements that contain ingredients like L-arginine, L-citrulline, and beetroot extract, which have been shown to increase nitric oxide production in the body. Additionally, be wary of ...

Citrulline is a nonessential amino acid created by the body, obtained from dietary sources, and can also be found in two supplement forms: L-citrulline or citrulline malate. The difference between ...

This supplement is Optimum Nutrition’s highest and most advanced pre-workout. It contains 200 mg of natural caffeine and other ingredients such as L-citrulline, amino acids, L-leucine ...