Nitric Oxide Supplement Allergy Research Group Citrulline vs. Arginine Which One's Better for Vasodilation? @moreplatesmoredates A lot of pre workouts still include Arginine under the assumption that since it's the direct precursor to nitric oxide, it must be L Arginine vs L Citrulline: Which Boosts Nitric Oxide More? L Arginine + L Citrulline Complex 1000mg LAC Effect of L arginine or L citrulline supplementation on plasma amino Download Scientific Diagram