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We are one of the leading Melatonin suppliers & manufacturers in china with cas 73-31-4 ,if you want to buy Melatonin, feel free to contact us for free sample and competitive price.

Pure melatonin powder is a natural hormone that plays a role in sleep.Melatonin production and release in the brain are associated with the time of day, rising at night and falling in the morning.Light at night will hinder its production.Melatonin dietary supplements have been studied to treat sleep disorders such as jet lag, body clock disorders, insomnia and sleep problems among night shift workers.It has also been used to study the symptoms of dementia.Melatonin is a hormone produced by the pineal gland, a small gland in the brain.Melatonin helps control your sleep and wake cycles.Your body has its own biological clock that controls your natural cycle of sleeping and waking hours.To some extent, your body clock controls how much melatonin your body produces.Normally, melatonin levels rise at midnight, stay high for most of the night, and then fall in the early morning.Light affects how much melatonin your body produces.On the shorter days of winter, your body produces melatonin earlier or later than usual.This change can lead to symptoms of seasonal affective disorder (SAD) or winter depression.

Hebei Guanlang Biotechnology Co., Ltd. belongs to Guanlang Group, which was founded in 2007 , located in Shijiazhuang city which is the capital of Hebei Province and hub sector among Beijing Tianjin and Hebei and has advantage of convenient transportation . Our company is a modern high-tech chemical enterprise with Research & Development, production and sales.We have our own factory and lab,also offer customized synthesis service for our customers.