![Melatonin [HRP] Cover Image](https://connectgalaxy.com/upload/photos/d-cover.jpg)
![Melatonin [HRP] Profile Picture](https://connectgalaxy.com/upload/photos/d-page.jpg){kind=avatar}
Melatonin [HRP] vẫn chưa đăng bất cứ điều gì
Về
Melatonin, the principal hormone of the pineal gland, is also produced by the retina, lens and GI tract. It is naturally synthesized from the amino acid tryptophan (via synthesis of serotonin) by the enzyme 5-hydroxyindole-O-methyltransferase.
