1, choose sunscreen cosmetics to avoid causing skin allergies.

2. Choose an appropriate amount of sunscreen.

3, use the time to be appropriate: do not go out before applying sunscreen.

4. SPF is not cumulative. Apply two layers of SPF10, and only one layer of SPF10 will protect you.

5. It's best not to mix and match different brands of sunscreen.

6. Do not reduce the effect due to improper storage.

7. Pay attention to sun protection on cloudy days.