GMP standard Factory Supply Melatonin Powder, Melatonin Bulk, Melatonin

Melatonin is the first biologically active substance found in the pineal gland. When the mammal is in the dark, the melatonin secretion activity is immediately strengthened; when it is turned into a bright environment, it is stopped. The rhythm of melatonin secretion can be measured from the urine as the light changes. Other factors such as sleep, eating conditions, mental state, and stress also have an effect. Injecting melatonin into the hypothalamus inhibits the secretion of gonadotropins, but it has also been observed that melatonin can act directly on the pituitary gland. Thus melatonin can inhibit the secretion of gonadotropins through the hypothalamus and/or pituitary gland. In addition, melatonin receptors have also been found in the ovary, indicating that this is also the site of action of melatonin.

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