L-Arginine capsules from Douglas Labs contain 700 mg pure, crystalline L-arginine per capsule.
L-arginine can either be used for glucose synthesis or catabolized to produce energy via the tricarboxylic acid cycle. It is needed for tissue protein synthesis and ammonia detoxification via the urea acid cycle. L-arginine is required for the synthesis of creatine phosphate. Similar to adenosine triphosphate (ATP), creatine phosphate functions as a carrier of readily available energy for contractile work in muscles. L arginine plays a role in support of peripheral blood flow. For people with chronic cold hands and feet this supplement may facilitate increased circulation to these tissues. L-Arginine is used as a therapy for some patients who have genetic variants in the NOS3 gene. Arginine is an effective tool for ED in this case.