How long is the shelf life of sunscreen? Can you still use sunscreen after its shelf life has expired?

When I was packing up a few days ago, I found a bottle of sunscreen that I hadn't used. I don't know if it has expired. How long is the shelf life of sunscreen generally? Can it still be used if it has expired?

The shelf life of sunscreen is generally three to five years. Although there are many brands of sunscreen, and the shelf life of sunscreen produced by each brand is different, the shelf life of unopened sunscreen on the market is generally three to five years, while the shelf life of opened sunscreen is six months to one year. The shelf life is usually marked on the bottle of sunscreen.

Sunscreen can generally be used for about a year, but many people cannot finish a bottle of sunscreen in a year, and it would be a pity to throw it away directly. In fact, it can be used to apply it on the hands and feet of the body.

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.

If you use sunscreen frequently, you can just store it at normal temperature indoors. However, please note that sunscreen should not be exposed to the sun. It is best to store it in a cool place.

After we use the sunscreen, we should remember to cover the sunscreen with a cap. Because if we don't do this, the sunscreen is easy to react with some substances in the air and affect the quality of the sunscreen. If we use this kind of sunscreen frequently, it is easy to cause damage to our skin.

If it is unopened sunscreen, it is recommended that you put it in the refrigerator. Generally, the shelf life of sunscreen is two to three years.

If oil-based skin care products are kept at low temperatures for a long time, oil and water will separate, the texture will become rough, the shape will diverge, and even lose their skin care effects and irritate the skin. Therefore, for facial cleansers, cleansing creams, day creams, night creams, functional creams and other products, do not expose them to direct sunlight. As long as they are placed in a cool and dark place, the product quality can be ensured.