Can I apply expired sunscreen on my feet? How long is the shelf life of sunscreen?

Whether going out or everyday, sunscreen is a skin care product we need to prepare on a daily basis. What should we do if we accidentally let the sunscreen expire? Can I use expired sunscreen on my feet?

Can I use expired sunscreen on my feet?

If the sunscreen is not expired for a long time, it can be applied to other parts of the body except the face, and it can also have a certain sun protection effect. However, if it has been expired for a very long time, it is recommended not to continue using it. At this time, the ingredients of the sunscreen may have deteriorated. Continuing to use it will not only be ineffective but may also cause some adverse effects.

How long is the shelf life of sunscreen?

The shelf life of unopened sunscreen is generally three years, but it is best to use up the opened sunscreen within the same year. This is because the opened sunscreen will come into contact with the air, which contains many bacteria and microorganisms that are invisible to the naked eye, which will accelerate the loss of sunscreen ingredients in the sunscreen. Therefore, it is best to use up the opened sunscreen within the same year.

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.

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.