Sisu - 5HTP - 60 Veggie Capsule(s) - NPN: 80003384 -- Occurring naturally in the body, the 5-HTP amino acid is a precursor to serotonin, the happy hormone. This high-potency 5-HTP capsule works to raise serotonin levels to help relieve fibromyalgia symptoms, prevent migraine and tension headaches, promote a healthy mood balance, act as a sleep aid and benefit your weight-management program.