Melatonin is a hormone that the body produces naturally in the pineal gland. Its pattern is similar to other important hormones for the processes of aging, such as DHEA (dehydroepiandrosterone) and HGH (Human Growth Hormone). Production is abundant at an early age and starts to decrease after puberty. The functions at the cellular level are involved in synchronizing life cycles, particularly day and night hours. In the nucleus of cells, Melatonin supports the integrity of its structure. This substance is important for hormone production in the body. It also helps the health of the immune and cardiovascular systems and combats the effects of oxidation.