Can lipstick be used when heated? Can lipstick be refrigerated overnight?

All cosmetics have a shelf life. The shelf life of lipstick is generally three years. Expired lipstick cannot be used because the chemical composition of expired lipstick has changed. Using spoiled lipstick on the lips can be harmful.

Yes, you can use it. Lipsticks are heated when they are made. Do not use lipsticks that have been stored for a long time and have exceeded their shelf life. If they have been exposed to high temperatures, the melted part can be wiped off with a tissue, and there is no problem inside. Do not use expired lipsticks. The shelf life is generally 3 years. If it is within 3 years, there is no problem. Otherwise, the preservative ingredients will become ineffective over time, and the bacteria inside will exceed the standard. It is also used directly on the mouth, which will cause illness.

There is no problem with refrigerating lipstick overnight, because the temperature of the refrigerator compartment is above zero degrees, which will not have a big impact on the paste. If you buy lipstick in the hot summer, you can put the lipstick in the refrigerator overnight before using it to prevent the paste from being too soft and breaking during use.

Lipstick leaking water does not mean it has gone bad. The main ingredient in lipstick is wax, which is a very stable substance. Compared with other cosmetics, lipstick can be said to be the most stable and quality-preserving cosmetic. Therefore, if water leaks out of the lipstick, it is not actually deteriorating and you can use it with confidence. Many girls will find some small water droplets on the lipstick paste after opening the lipstick after going out in the summer. Many girls are worried that the lipstick will "sweat". Does it mean that it has gone bad? There are also many girls who are afraid that applying lipstick on their mouths will affect their mouths, so they will choose to throw it away directly. Although it is distressing, they can only throw it away for their own health. In fact, there is no need to worry about this situation. This is a normal phenomenon. The reason why there are small water droplets on the lipstick paste is not because it has gone bad, but because the outside temperature is too high, causing them to "sweat". Most lipsticks have a shelf life of about three years if they are unopened, and after opening, the shelf life of lipstick will be about one year. If you store it properly during this year, you don’t have to worry about small water droplets on the lipstick. If you want to avoid small water droplets on the lipstick, you should choose to store the lipstick in a cool and dry place, avoid high temperatures, and it is best to store it upright. If you find that the lipstick has signs of melting, you can put the lipstick in the refrigerator and refrigerate it for 2 to 3 hours before using it. Don’t keep the lipstick in the refrigerator for too long, otherwise the lipstick will melt due to the temperature difference between the refrigerator and the outside world.

The differences between matte lipstick and matte lipstick are mainly reflected in the makeup feel, color rendering and applicable occasions. Matte lipstick has very high requirements for base makeup and will create a clean makeup feel, while matte lipstick will create a vivid and three-dimensional makeup feel; the color rendering of matte lipstick is higher than that of matte lipstick.