5-HTP is an amino acid that converts into serotonin inside the body. Serotonin is a chemical that acts as a neurotransmitter in the brain. 5-HTP may help with maintaining healthy body weight when taken in conjunction with a healthy diet and exercise.* It may also support the brain and help promote healthy sleep.** 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.