NOW Foods L-Tryptophan 220mg 60 Capsules X HM Undergarments Medicinal Ingredients: Each capsule contains:

Medicinal Ingredients: Each capsule contains: Sensoril

5 mcg (500 IU)

Fair Trade

0 (Aspergillus oryzae) 8000 FCC HUT (16 mg)

NOW Foods L-Tryptophan 220mg 60 Capsules X HM Undergarments Medicinal Ingredients: Each capsule contains:NOW Foods L Tryptophan 220mg 60 Capsules Description NOW Foods L Tryptophan is a source of an essential amino acid for the maintenance of good health. L Tryptophan is a large neutral amino acid essential to human metabolism because it is the metabolic precursor of serotonin (a neurotransmitter), melatonin (a neurohormone), and niacin (vitamin B3) which assist in the regulation of sleep, positive mood and immune function. L Tryptophan is not