Tryptophan Plus suspension 960 ml. 1QT
L-tryptophan is an essential amino acid. Is a precursor to neurotransmitters serotonin and 5-hydroxytryptophan (5-HTP), the hormone melatonin and the B vitamin, niacin. Helps maintain serotonin levels for healthy mood. Supports a normal, healthy attitude. Plays an important role in supporting natural, restful sleep. It contains Tryptophan L, Arginine, Isoleucine L and Phenylalanine D.