WHAT IS 5-HTP? 5-HTP ( 5-hydroxytrptophan ) is the immediate precursor of the monoamine neurotransmitter serotonin. Serotonin is found in the brain and central nervous system, it has many implications in cognition, mental health and sleep patterns. HOW DOES 5-HTP WORK? 5-HTP crosses the blood-brain barrier, causing the brain's serotonin-producing neurons to increase production. Increased serotonin production then leads to increased serotonin release. 5-HTP can be used with a program of reduced intake of dietary calories and increased physical activity to help in weight management by reducing carbohydrate cravings. WHAT ARE THE RECOMMENDED DOSAGES? Healthy mood balance: 50 - 100 mg, 3 times per day Weight management: 250 - 300 mg, 3 times per day Sleep aid: 100 - 200 mg per day