L-Arginine L-Pyroglutamate is an amino acid complex benefiting verbal memory and learning improvement, cognitive enhancement, Nitric oxide level improvement, physical activity or exercise assistant. L-Arginine L-Pyroglutamate (or Arginine Pyroglutamate) is a complex of L-arginine and L-pyroglutamic acid which are molecularly bonded together. This amino acid complex has synergistic effects of L-arginine and L-pyroglutamic acid. L-Arginine is the precursor of nitric oxide (NO). Nitric oxide is produced from L-arginine by all tissues of the body and plays important roles in the cardiovascular system, immune system and nervous system. L-Pyroglutamic acid is naturally found in many foods and proposed to be associated with activity of the neurotransmitter acetylcholine and GABA. L-Pyroglutamic acid can improves learning and memory capacities in animal testing. L-Arginine L-Pyroglutamate can cross the blood brain barrier and enter into the brain to improve brain blood flow and cognitive functions. . Drago F, Valerio C, D'Agata V, Astuto C, Spadaro F, Continella G, Scapagnini U; Institute of Pharmacology, University of Catania Medical School, Italy; Pyroglutamic acid improves learning and memory capacities in old rats, Funct Neurol. 1988 Apr-Jun;3(2):137-43. Generally Suggested Use: For adults, to take 1/2 teaspoon of this powder (about 1500 mg) 1 to 2 times daily in water, juice, or beverage. If you want to accurately weigh dose amount, an accurate balance (0.01g-100g) is recommended. Or do your own research for dosage, and your usage purpose. Warnings: The above description is for informational purpose, not as healthcare professional advice. Please read the whole description carefully before you take this amino acid. Please consult your doctor and/or pharmacist before you take this amino acid. Pregnant or lactating women, people with diabetics, hypoglycemics, and people with known medical conditions and/or taking drugs, should consult with a doctor.