Melatonin is a hormone produced by the pineal gland which serves to synchronize and coordinate biological functions of the body. This hormone appears in foods in only trace amounts and, therefore, supplementation supports the natural functioning of the pineal gland. Melatonin is important in regulating sleep, circadian rhythm and the body?s natural time clock. Melatonin is also an important antioxidant, rapidly taken up by the brain, which acts as an effective scavenger of highly toxic free radicals, which induce DNA damage. The amount of melatonin produced by our bodies seems to decrease with age.