There are 6 notes on using sunscreen

You may not know that the sunscreen is not used properly and it does not achieve the purpose of sun protection. Be sure to pay attention to the following aspects when using sunscreen in summer:

1. Choose sunscreen according to the nature of your skin: use sunscreen cosmetics to avoid skin allergies. Before using a new product, it is best to try on the back of the hand or the inside of the arm or the root of the ear. After 24 hours, there is no allergic reaction. be usable.

2. Choose the appropriate coefficient of sunscreen: the higher the SPF value, the longer the sunscreen time. The SPF value, which is the sun protection factor, generally protects the skin of the yellow people from the sun for 15 minutes without being burned. Then, using the anti-UV products of SPF15, there is about 225 minutes (15 minutes x SPF15) of the sun protection time. Daily care, shopping out, shopping can choose SPF5-8 sunscreen products, SPF10-15 sunscreen products can be used when going out to play. Use SPF20-30 waterproof sunscreen when swimming or sunbathing.

3. Use time should be appropriate: sunscreen can not be used before makeup, nor can it be applied to the sunscreen. Sunscreen, like normal skin care products, takes a certain amount of time to be absorbed by the skin, so apply sunscreen 10-20 minutes before going out, and apply it 30 minutes before going to the beach.

4. The amount of use should be sufficient: usually the sunscreen is applied to the skin at a dose of 2 mg per square centimeter to achieve the desired sunscreen effect. And the SPF value can not be added up, the two layers of SPF10 sunscreen, only one layer of SPF10 protection effect.

5. Do not mix different brands of sunscreen: mixed use will increase the possibility of skin allergies. The ingredients of various brands of sunscreen are inconsistent. If they are mixed and overlapped on the skin, they may cause the components to interfere or mutually repel each other, reduce the sunscreen effect and even cause skin irritation.

6. Do not reduce the effect due to improper storage: if exposed to heat for a long time or direct sunlight, the sunscreen effect may be reduced. Do not use spoiled sunscreen cosmetics because it not only has a reduced sunscreen effect, but is also more likely to irritate the skin.