Melatonin can be widely used in health food, medicine, all kinds of cosmetics, nourishing and nursing products. Function: 1. Melatonin can whiten the skin. 2. It can regulate human endocrine, remove black spots, age spots, chloasma, pregnancy spots and pigmentation caused by sun radiation, whiten and moisturize skin, and restore youth. 2. Effectively improve sleep quality: appropriate supplement of melatonin can effectively improve sleep quality. 3. Longevity: melatonin is the most important endogenous antioxidant with high efficiency in the brain, which has a protective effect on the brain. Therefore, melatonin is an important anti-aging hormone. 4. Maintenance and enhancement of sexual function: supplement of melatonin can improve the sexual function of the middle-aged and old people with aging, decreased energy and decreased libido
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