Source Naturals, Sleep Science Melatonin, 3 Mg, 240 TabsProduct Description Sleep Science Melatonin from Source Naturals is a dietary supplement that helps support restful sleep patterns. Melatonin is a hormone that your body naturally produces to regulate sleep wake cycles. This supplement can be useful for those who have trouble falling asleep or staying asleep. Product Benefits Supports Relaxation. Helps Maintain Sleep Cycle. Ingredients Supplement Facts Serving Size: 1 Tablet Amount Per Serving %Daily