✅✅ 5-HTP is the immediate precursor of serotonin. Serotonin is the chemical neurotransmitter produced in the brain that helps regulate sleep, body temperature, sexual desire, mood and appetite. ✅✅ Melatonin Production — 5-HTP is the direct metabolic precursor to serotonin which is important for the production of melatonin, a hormone secreted by the pineal gland that aids in biorhythm regulation and is also an extremely powerful antioxidant. ✅✅ While produced by the body, 5-HTP can not be obtained through food, so supplementation is required if you want extra. ✅✅ This product is gluten free and non-GMO. ✅✅ Allergen statement: This product does not contain fish, soybean, cereals, celery, corn, mollusks, crustaceans/shellfish, peanuts, milk, wheat, egg, seeds (sesame, sunflower and poppy), or tree nuts (almonds, Brazil nuts, hazelnuts, cashews, macadamia nuts, pecans, pistachio nuts, Queensland nuts). ✅✅ GMP quality assured — every aspect of our manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation). ✅✅ Our 5-HTP supplement is of the highest quality possible, test results show it's more than 99% pure. There is a snippet of the certificate of analysis among the product pictures. ✅✅ Packaged in the USA by a family owned and operated company since 1992. ✅✅ *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.