Progressive Labs, TryptoPure, 500mg, 90 Vegetable Capsules Skin Healing Acts as a cofactor for

Acts as a cofactor for many important enzymes

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Progressive Labs, TryptoPure, 500mg, 90 Vegetable Capsules Skin Healing Acts as a cofactor forDescription L TRYPTOPHAN is an essential amino acid that serves as a precursor for the sleep hormone melatonin as well as for niacin and serotonin. Serotonin is an important neurotransmitter in the central nervous system that has a calming effect and helps modulates mood, sleep, and metabolism. L Tryptophan is the least abundant amino acid in the American diet. Even a person on a high protein diet generally gets less than 1. 5 grams a day.