1, ultraviolet irradiation
There are a lot of ultraviolet rays in the sun, which will cause the skin to turn black. In fact, whether it is sunny, cloudy or rainy, staying outdoors for a long time will make your skin black. Because sunshine exists whether there is obvious sunshine or not. Hiding behind clouds on cloudy days can still radiate ultraviolet rays.
2, the skin is short of water
Lack of water in the skin will cause the cells inside the skin to shrink and become dull. In fact, moisturizing and whitening are closely related. Once you lack hydrating skills, it will affect the skin's repairing power and make the skin black.
Step 3 Stay up late for a long time
Poor rest will also have a negative impact on skin color. Staying up late for a long time will lead to black eyes, which will lead to slow blood flow and blood stasis. Over time, it will cause the skin to turn black.
What should I do if my skin is black? Three ways to put it away first
The first is to do a good job in sun protection. As the "enemy" of white skin, ultraviolet rays can't be completely avoided, but the way to whiten skin is to cover the skin that can't be covered when you go out through the long sleeves of air pants, so you should apply appropriate SPF sunscreen. Pick it up in advance when the ultraviolet rays are strong, and remember to take an umbrella or wear a hat.
The second is to ensure sleep. Keep a regular routine. If the reason why girls stay up late is to play with their mobile phones, they should put down their mobile phones after midnight 1 1 and have a good beauty sleep, so that their skin can be full of energy and radiant the next day.
Finally, diet whitening.
Honey: Honey can remove oxygen free radicals in the human body and help the human body resist the invasion of aging. Therefore, drinking more honey can ensure that the skin is full of moisture, fade spots, and be white and beautiful.
Fruit: If you want to have fair and charming skin, doctors will advise girls to eat more fruits containing a lot of vitamin C, such as strawberries and guava.