Melatonin

Melatonin is a hormone secreted in the brain that regulates sleep.

Also known as: N-Acetyl-5-Methoxytryptamine, Melatonine, Melovine, Melatol, Melatonex, Circadin

examine.com

ConsumerLabs

Wikipedia

pubMed

https://www.lifeextension.com/Magazine/2018/7/New-Way-to-Use-Melatonin/Page-01