Reasons for sun protection in winter

　　Due to the destruction of the ozone layer, sun protection measures must be taken even in winter, otherwise it will harm the skin.

　　The ozone layer becomes thinner. According to analysis, the winter and spring are the seasons with the lowest ozone content in the world in all four seasons. Without the “protective coat” of the ozone layer, ultraviolet rays will take advantage of the weakness and damage our skin. Especially on cloudy and rainy days, it seems that there is no sunlight, but the ultraviolet rays reach the dangerous limit. In addition, most people ignore the importance of sun protection in winter, so that the skin is unknowingly damaged and aging.

　　Skin metabolism slows down. Affected by climate and air-conditioning, the skin is prone to slow circulatory metabolism in winter, and the function of skin renewal and repair is weakened. At this time, the skin is exposed to ultraviolet rays to produce melanin, and it is difficult to metabolize and form spots, so if you don't take good care of sunscreen, spots will crawl on your face silently this winter.

　　Therefore, it is recommended that you develop good sun protection habits, and you must persevere in sun protection work throughout the year. The lowest sun protection product index SPF used throughout the year should not be less than 30, and you should spend every winter.

　　Misunderstandings of using sunscreen

　　1. The higher the SPF, the better

　　The higher the SPF of sunscreen products, the better. Too high SPF can cause blockage of pores, delayed perspiration, and heavy burden on the skin. It will feel uncomfortable when applied to the skin and is not suitable for daily use. The best practice is to choose different sun protection index products in different environments and for different needs.

　　2. Sunscreen only depends on the SPF, not the texture

　　When choosing sunscreen products, in addition to the sun protection index, the choice of texture must also be paid attention to. Especially in spring and summer, you must choose a refreshing and thin texture to avoid excessive oily skin. In autumn and winter, you can choose a moisturizing and water-locking texture. The skin's moisture retention. In this way, in addition to good sun protection, it can also moderately relieve the skin troubles encountered due to seasonal changes.

　　3.Just apply sunscreen once all day long

　　Is it enough to use sunscreen only once a day? In fact, applying it only once a day is often not enough, unless you are out for a short time. The frequency and interval of application should be determined according to the specific situation. General sunscreens have a sweat resistance of 30 minutes and a waterproof degree of 80 minutes. If you are going to be outside for a long time, it is recommended to use sunscreen every few hours.

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Reasons for sun protection in winter

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