Can unopened sunscreen still be used after it expires? The difference between sunscreen and isolation cream

Sunscreen is a skin care product that many girls will prepare in the summer. Sometimes they even prepare many sunscreens of different brands or with different functions. But what should we do if some of them have expired before being opened? Can I still use this sunscreen?

Can I still use unopened sunscreen that has expired?

cannot. Expired sunscreen cannot be used even if it is unopened. Some ingredients in expired sunscreen may have begun to deteriorate. The skin on our face is very fragile than the skin on other parts of the body, so unopened sunscreen cannot be used.

The difference between sunscreen and barrier cream

Seal generally has two functions: the first is to block ultraviolet rays, and the second is to form a protective film on the skin surface, effectively reducing the irritation and damage to the skin by the external environment. The main function of sunscreen is to help protect the skin from the sun.

What is the correct way to use sunscreen?

When applying sunscreen, you should apply it to your forehead first, spreading it evenly from the center to the sides without making circular motions. Then apply gently to the face from top to bottom, making sure not to neglect your neck. After applying sunscreen, it takes a certain amount of time to take effect, so wait 20 minutes after applying sunscreen before going out.

Precautions for using sunscreen

1. When choosing sunscreen cosmetics, be sure to avoid causing skin allergies.

2. Choose a sunscreen with an appropriate factor.

3. Use it at the right time: Don’t apply sunscreen just before going out.

4. SPF values ​​cannot be added together. Applying two layers of SPF10 sunscreen will only have the protective effect of one layer of SPF10.

5. It is best not to mix different brands of sunscreen at the same time.