Description: Melatonin is a hormone produced by the pineal gland. Melatonin is highly conservative and is a non-receptor free radical scavenger and broad-spectrum antioxidant. Melatonin helps prevent ischemia-reperfusion injury in the liver, brain, myocardium, intestines and kidneys. Melatonin can be widely used in health foods, medicines, various cosmetics, and nourishing care products. Functions: 1. Melatonin removes spots and whitens the skin naturally: Melatonin can whiten the skin. It can regulate the endocrine system of the human body, remove dark spots, age spots, chloasma, pregnancy spots and pigmentation caused by sun exposure and radiation, whiten and moisturize the skin, and restore youthful style. 2. Effectively improve sleep: Appropriate supplementation of melatonin can effectively improve sleep quality. 3. Longevity: Melatonin is the most important and highly effective endogenous antioxidant in the brain, which has a protective effect on the brain. Therefore, melatonin is an important anti-aging hormone. 4. Maintain and enhance sexual function: Supplementing with melatonin can improve the sexual function of middle-aged and elderly people whose sexual desire has decreased due to physical weakness and decreased energy.