Metabolic Response Modifiers All Natural Enhances Mood and Sleep Patterns Supports Weight Management Dietary SupplementL-5-Hydroxy-Tryptophan (5-HTP) is the immediate precursor of serotonin. 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 has been shown to aid weight loss, reduce carbohydrate cravings, improve mood and reduce mood fluctuations as well as promote normal sleep patterns. Natural Source from Griffonia Seed Tested for Potency and Purity Free of "Peak X" Contamination