Do I still need to wear sunscreen on rainy days? Do you need it indoors?

Don't wear sunscreen on rainy days, and don't use it indoors. Generally speaking, it is not necessary to wear sunscreen on cloudy days. But if it is in summer, even if it is cloudy, if there are outdoor activities, it is best to wear sunscreen. Because the ultraviolet intensity of indoor space is still higher than other seasons even in cloudy days in summer, the key role of sunscreen is to protect skin from ultraviolet burns. It is necessary to apply sunscreen on cloudy days. On cloudy days, we can still see the scenery clearly in the room, which shows that there is plenty of sunshine, so we also need to wear sunscreen. On cloudy days, the reflection and scattering of indoor key solar light is much weaker, which is not easy to cause tanning and sunburn of the skin. Therefore, the thickness and working frequency of sunscreen are not as harsh as sunny days and outdoors. It is easy to be careless in rainy days and cold winters.

If you go skiing in winter, you need to pay more attention to facial protection. Remember to apply sunscreen on cloudy days, and the SPF can be slightly reduced, about SPF20 and PA. At noon, you should still remember to make up the sunscreen isolation. Minimize the damage of sunlight to the skin. The room is the same, not only the sunlight can penetrate through the laminated glass, but also some light sources or computer display screens in the room will constantly release radiation sources, which will also harm the skin and accelerate the skin aging. It can reduce the content of hyaluronic acid in the skin, make the skin dry, accelerate the formation of melanocytes and darken the skin color, which is the key cause of skin cancer.

Ultraviolet radiation will make the skin produce a lot of oxygen free radicals, make the peroxide in the cytoplasm reflect, and make melanin cause more melanocytes to spread all over the stratum corneum and produce black spots. Therefore, ultraviolet rays can be said to be the highest culprit leading to skin wrinkles, aging, relaxation and macular degeneration. Therefore, everyone can't be lazy, and we should actively do a good job in sun protection and isolation.