Hydroxytryptophan: Hydroxytryptophan is derived through the critical amino acid tryptophan which is transformed into the neurotransmitter serotonin. Serotonin plays a vital part in regulating temper, appetite, snooze, and habits. The FDA has not evaluated the statements offered on this page. Be sure you check with using a accredited health practitioner https://www.revivedailyrevive.com/