Best Quality Melatonin,Melatonin Raw Material,Melatonin 99% Powder for Sleeping

Best Quality Melatonin,Melatonin Raw Material,Melatonin 99% Powder for Sleeping

Melatonin is a hormone secreted by the pineal gland in the brain that helps regulate other hormones and maintains the body's circadian rhythm. The circadian rhythm is an internal 24-hour time-keeping system that plays a critical role in determining when we fall asleep and when we wake up. Darkness stimulates the production of melatonin while light suppresses its activity.