Promotes Positive Mood & Sleep Patterns May Help Control Appetite Non-GMO Project Verified Dietary Supplement Certified Vegan GMP - Good Manufacturing Practices - Produced in a Certified Facility L-5-hydroxytryptophan (5-HTP) is the direct metabolic precursor of serotonin and is important for the production of melatonin. The production and maintenance of serotonin levels in the brain are directly related to eating and sleeping patterns, mood shifts, tranquility, and compulsive behavior. Use of 5-HTP can help support regular serotonin related functions, such as mood, appetite and sleep patterns. Natural source from Griffonia Seed. Vegan/Vegetarian friendly. Free of "Peak X" contamination.