It's summer time to apply sunscreen again. I believe that many of the sunscreen used in last year's paper has not been used up. How long is the shelf life of sunscreen? How to deal with the endless sunscreen? Follow Xiaobian to get to know it.
Sunscreen shelf life sunscreen generally has a shelf life of three years, but it is recommended to use the unsealed sunscreen in the same year, because the unsealed sunscreen will contact with the air, and there are many invisible bacteria and microorganisms in the air, which will accelerate the loss of sunscreen ingredients, so it is recommended to use the unsealed sunscreen in the same year Complete.
Can sunscreen be used next year
Sunscreen can still be used next year, but it's not recommended for girls. Because the sunscreen after unsealing, if stored for one year, will oxidize the sunscreen ingredients in it. If girls use it again, it will not have the first sunscreen effect, or even no sunscreen effect, so it is meaningless for girls to use it again. The most important thing is that if the sunscreen is stored for one year, it may have been contaminated by bacteria. If the sunscreen is reused by girls, it is likely to cause skin redness, swelling, tingling and other allergies. Therefore, girls are advised not to keep the sunscreen for the next year.
What can the next year's sunscreen do
If it's the next year's sunscreen, it's not recommended for girls to rub it on the face skin, but girls can rub it on the hands and feet, etc. ~ because the skin on the hands and feet is not fragile, and sometimes it won't be directly exposed to the sun, so girls can apply the next year's face sunscreen on the body~
The best time to use sunscreen
The best time for girls to use sunscreen is 30 minutes before going out. It takes a certain time for sunscreen to work, and 30 minutes can make sunscreen work, so it is recommended that girls apply sunscreen 30 minutes before going out. At the same time, we also need to remind our girls that we must pay attention to sunscreen, so as to play the best sunscreen effect. If it's the girls in the room, it's recommended to apply it again in 4-5 hours. If it is outdoors, it is recommended to make up every 2-3 hours~