4hw.com.cn: every summer is a time for girls to start a sun protection war. Sunscreen sunscreen spray on your body. But if generally all skin care products have a shelf life, and sunscreen is no exception, can the unused sunscreen be used next year? Let's have a look!
How long can't sunscreen be used
After the sunscreen is disassembled, it's better to use it in the same year, and don't leave it for the next year. Because the sunscreen after being disassembled will increase with the times of use and the times of contact with the air, and will be affected by the microorganisms and bacteria in the air, which will affect the sunscreen ingredients in the air, so that its sunscreen effect is not as good as the first one, so it is suggested that girls should use the sunscreen completely in the same year~
How will sunscreen be used next year
If the girls don't use the sunscreen this year, and then save it for the next year, it's likely that the sunscreen ingredients in it have lost their original effect, so there is no sunscreen effect for the girls to use again, so it's meaningless to use it. At the same time, it is possible that the sunscreen has been contaminated for a long time, breeding some invisible bacteria. If it is used again, it is likely to cause skin redness, swelling, burning, tingling and other discomfort, so it is suggested that girls do not keep the sunscreen for the next year.
How long can I keep the sunscreen unopened
The open shelf life of sunscreen is generally 3-5 years. Girls still need to judge the shelf life according to the shelf life indicated on the package of sunscreen they bought. What's more, girls must pay attention to is that the shelf life indicated on the outer package generally refers to the open shelf life, so it's better to use the open sunscreen in the same year~