Dietary Supplement Serotonin Production Healthy Mood Promotes Relaxation Gluten-Free Soy-Free No Artificial Preservatives Potency & Quality Guaranteed An FDA Regulated FacilityHealthy Mood 5-HTP Elite is a feel good formula that supports serotonin production. Serotonin is a major neurotransmitter in our brain. 5-HTP helps provide a sense of well-being and promotes a healthy mood.