5-HTP is the intermediate precursor in the natural synthesis of serotonin, a neurotransmitter that helps to regulate mood, appetite, and sleep/wake cycles. 5-HTP readily crosses the blood-brain barrier and clinical studies suggest that 5-HTP can support healthy serotonin levels. Serotonin is associated with positive mood and provides a substrate for the production of melatonin. 5-HTP is extracted from the bean of the African plant Griffonia simplicifolia, a natural vegetable source. Not recommended for pregnant or lactating women. 5-HTP 100mg 90C 5-HTP to help regulate appetite Helps to induce sleep-wake cycles and mood Acts as an intermediate precursor in the natural synthesis of serotonin. Directions: Take 1 Vcap 1-4 times daily in divided doses, preferably on an empty stomach, or as directed by your healthcare practitioner. If GI discomfort is experienced, take less or discontinue use.Protocol for Life Balance 5-HTP 100 mg Facts:1 Capsule contains: 5-HTP (5-hydroxytryptophan) (from Griffonia simplicifolia) (Seed) 100 mg Other Ingredients: Rice Flour and Cellulose (capsule).