Is there anything particular about using sunscreen? Is it unnecessary to use it in rainy days?

? Many people think that there is no need for sun protection without sunshine. In fact, ultraviolet rays are everywhere, so we should protect them even in rainy days. In addition, improper use of sunscreen will not only fail to achieve the purpose of sunscreen, but also damage the skin. So, what are the mistakes in using sunscreen and how much did you win?

? Myth 1: Without sunshine, there is no sun protection. Many people think that the main culprit of tanning is sunshine. Without sunshine, you won't get a tan. This is a wrong idea. On rainy days, although the amount of UVB decreases, UVA is still rampant. UVA has strong penetrating power, even if it is covered by clouds and glass, it can still reach the maximum amount of 95% on sunny days. Therefore, you should pay attention to sun protection even in rainy days.

? Myth 2: Too much/too little sunscreen. Many people think that sunscreen is too greasy, so they squeeze a little soybean-sized amount on the back of their hands and start applying it to their faces, but this method is not correct. Because the amount of sunscreen is too small to resist ultraviolet rays. Others wear a lot of sunscreen, which makes the whole face look greasy and makes it difficult to breathe in pores, which will reduce the ability to resist ultraviolet rays. Therefore, it is not appropriate to use sunscreen more or less, and the amount of a coin is just right.

Myth 3: Go out immediately after applying sunscreen. Many people are used to wearing sunscreen for only a few minutes before going out, thinking that the sunscreen time can be longer. In fact, this practice is not correct. Because sunscreen can't resist ultraviolet rays when it is first applied. The correct way is to apply sunscreen half an hour before going out, which is conducive to the formation of sunscreen and effectively resist strong sunlight.

Myth 4: Use different brands of sunscreen at the same time. Many people use several different brands of sunscreen at the same time in order to have better sunscreen effect and keep their skin delicate, thinking that the sunscreen effect will be better. In fact, this practice is not correct. Many brands of sunscreen used together will not only repel each other, but also cause skin allergies. So try not to use multiple brands of sunscreen at the same time.