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Melatonin is a natural extract. is an amine hormone produced by the pineal gland in mammals and humans.naturalin melatonin extract,
Melatonin is the earliest biologically active substance found in the pineal gland. When mammals are in the dark, the secretion of melatonin is immediately enhanced; when it is turned into a bright environment, it stops secretion. The rhythm of melatonin secretion can be measured in urine as the light changes. Other factors such as sleep, diet, mental state, and stress also play a role.naturalin melatonin extract,
Injecting melatonin into the hypothalamus suppresses gonadotropin secretion, but it has also been observed that melatonin acts directly on the pituitary gland. Therefore, melatonin can inhibit the secretion of gonadotropins through the hypothalamus and/or pituitary. In addition, melatonin receptors have also been found in the ovary, indicating that this is also the site of action of melatonin.