Melatonin is a dietary supplement and medication as well as a naturally occurring hormone. [7][10] As a hormone, melatonin is released by the pineal gland and participates in the sleep-wake cycle. [7][10] As a supplement, it is commonly used for the short-term treatment of insomnia, such as jet lag

As one of controlled release dietary supplements in China, we can confirm some hotsale dietary supplements have be increased in 2020 and 2021, such as Melatonin 10mg controlled release tablets, Vitamin C 1000 mg /1500 mg with Zinc 15 mg controlled release tablets, L-carnitine 1000 mg controlled release tablet and probiotics 20 billion CFUs colon targeted release caplet, and the like.