GNC Melatonin 5 MG: For a Restful Nights Sleep GNC Melatonin 5 MG is a supplement that offers a natural way to support restful sleep. Your body naturally produces this hormone in your pineal gland and creates less of this sleep-influencing substance during the day and more at night. Melatonin 5 MG for sleep may be beneficial if you have a sleep schedule that frequently changes. Contains 5mg of melatonin to support restful sleep Tablets feature ingredients acceptable for vegetarian use These statements have not been evaluated by the Food & Drug Administration. This product is not intended to diagnose treat cure or prevent any disease.