Weather travel index

The higher the UV index, the more serious the erythema damage to human skin caused by UV radiation. Similarly, the higher the ultraviolet index, the greater the damage to the skin in a short time.

The range of ultraviolet index is represented by the number 15 in 0 ~ 15. Usually the ultraviolet index at night is 0, 1, 2, and the weakest one does not need protective measures. Grade 3 and 4 can take some appropriate protective measures. The index is between 3-6 (including 3-6), so you should take some protective measures when going out, and wear a sun hat, sunglasses and a sun umbrella.

Index 7 ~ 9, 10 ~ 14 Avoid the sun, and wear a sun hat, sunglasses and a sun umbrella when going out. 10 and 10 are both strong, so try not to go outdoors. When you have to go out, take various effective protective measures. The ultraviolet index of tropical, plateau and sunny days is 15.

Sunscreen methods in different seasons

I. Spring

1, the sun is soft in spring, so you can choose an ordinary SPF sunscreen. Generally, SPF 15 is enough.

2, in addition to sunscreen, you can also try cream.

Second, summer.

1, apply sunscreen repeatedly.

Sweating or towel wiping will reduce the sunscreen effect. Repeated application is not to obtain new protection, but to maintain the sunscreen effect. Any skin care product, even water, will affect its sunscreen function as long as it is coated with sunscreen, so it is necessary to apply sunscreen after swimming or sweating.

2. Avoid going out at noon.

In summer, every morning 10 to 2: 00 pm is the time when the intensity of solar ultraviolet radiation is the highest. Avoid or reduce going out.

Step 3 use sunscreen

The protection of sunscreen depends not only on the composition and coefficient of sunscreen, but also on the thickness and uniformity of wiping.

Third, autumn.

1, pay attention to diet, and eat more sunscreen nutrients such as fruits and vegetables.

2. Choose the right sunscreen.

3. Pay attention to repair after drying.