YESC Nicotinamide Skin Serum Effect: （1） Whitening skin care effect: 5% niacinamide skin essence can effectively promote the synthesis of epidermal protein, accelerate the synthesis of collagen, improve skin quality, promote skin metabolism, and accelerate the decomposition of melanin. Reduces skin darkness, uneven skin tone, and improves skin texture to make skin whiter and more lustrous. （2） Effective freckle： If you have problems with pigmentation, it is recommended to use 5% nicotinamide for 4 weeks, and the naked eye can see a clear difference in effect. For the study of pigmentation, they concluded that 5% nicotinamide is as effective as 5% hydroquinone in treating chloasma with fewer side effects and higher safety. （3） Wrinkle anti-aging： Studies have shown that the effect of niacinamide on the skin is also wrinkle and anti-aging. Everyone knows that the main cause of skin aging is that the loss of collagen causes the skin to become dry and slack, resulting in wrinkles. Niacin acid can promote the skin's metabolism while deepening the skin, helping the skin to remove aging skin cells, improving the cell structure of the skin, stimulating the skin to quickly generate new cells, effectively smoothing the skin wrinkles and making the skin more Full and firm. Applicable Skin: 1. Dry skin, aging, yellow, lack of moisture and vitality 2. Skin has wrinkles and wrinkles, obvious skin damage 3. Sensitive skin is allergic Instructions: 1. Wash your face and pat dry 2. Use a toner first 3. Then apply a small amount of essence to the face, neck and chest 4. Finally apply moisturizer or cream 5. Can be used every day, once in the morning and evening
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