NOW Foods, Melatonin, 3 mg, 180 LozengesHealthy Sleep Cycle Chewable Fast Absorption A Dietary Supplement Vegetarian Vegan General Health Family Owned Since 1968 GMP Quality Assured Melatonin is a potent free radical scavenger naturally produced in the pineal gland. It is involved in many of the regulatory processes of the body, including regulation of glandular secretory functions related to the maintenance of normal sleep wake cycles and aspects of immune system function. Suggested use