Melatonin is a potent free radical scavenger naturally produced in the pineal gland and present in high amounts in the gastro intestinal tract.

Melatonin is involved in many of the body, brain and glandular biological functions including regulation of normal sleep/wake cycles, regulation of the immune system and maintenance of a healthy gastrointestinal lining.

NOW Foods Melatonin is a potent antioxidant that defends against free radicals and helps to support glutathione activity in the neural tissue.

See more: http://www.vitasprings.com/now-foods-melatonin.html

References
NOW Foods (n.d.). Retrieved from http://www.nowfoods.com/