Normal sunscreen function does not need to be realized at all, and ordinary disposable masks have enough sunscreen effect. There seems to be a big gap between UPF's 50 and 30 years old. In fact, UPF 50 is converted into 2.0% ultraviolet transmittance, and UPF 30 is equal to 3.3% ultraviolet transmittance. The gap is not big at all. Seriously, it is meaningless to blindly pursue UPF values.

Sun masks are meaningless to commuters, so they are not recommended at all. Because in the past two years, many brands have been taking advantage of consumers' ignorance of textile sunscreen knowledge, discovering the huge profits of sunscreen products and exaggerating the harm and fear of ultraviolet rays.

Sun protection tips

In order to minimize the damage, we need to apply a thick layer of sunscreen half an hour before going out. When we go out, don't just enjoy the sunshine, remind ourselves to wear an extra layer every two hours. If you want to swim, you must put it on more often. If you want to block ultraviolet rays absolutely, you need to bring an umbrella and a sun hat. Strictly speaking, these sunscreen products should be dark and made of anti-ultraviolet materials. Just like that big white S, you must open an umbrella in the sun.

Eat more foods that help prevent the sun from shining. Fruits and vegetables rich in lycopene, such as watermelon, guava, grapefruit and tomato, all help to prevent the sun. After tomatoes are cooked, the intake of lycopene is greater.