NOW - Melatonin 3mg - 180 caps.

Melatonin is a potent free radical scavenger that is naturally produced in the pineal gland and is present in large amounts in the gastrointestinal tract. * It is involved in many biological functions of the body, brain and glands, including the regulation of normal sleep / wake cycles, the regulation of the immune system and the maintenance of a healthy gastrointestinal lining.