Will lipstick melt in hot weather? How long should I keep lipstick in the refrigerator before taking it out?

Lipstick is a cosmetic that everyone is familiar with. Lipstick will easily deteriorate when it experiences a large temperature change. Some people will put their lipstick in the refrigerator when the weather is hot. If you put lipstick in the refrigerator, you must pay attention to the time.

It depends on where you put it. If you put it in a cool place, it won't melt. Under the high temperature condition for one hour, the lipstick is close to liquefaction, and it can't be applied because the paste is too soft. It can be seen that it is dangerous to put the lipstick in an environment above 50-60℃, and it will liquefy over time.

1. If your lipstick is placed in a high temperature environment for a long time, the lipstick paste may have melted a little. If you use it directly at this time, the lipstick may break. It is recommended to put the lipstick in the refrigerator for about half an hour, and then take it out and use it after the lipstick paste solidifies a little.

2. If your lipstick is broken, we can also use some small methods to reconnect the lipstick. First, twist out all the lipstick, and then heat the paste in the lipstick tube. The heating method is to use a hair dryer, set the wind speed to low, adjust the heat to the hottest, and then blow on the lipstick paste for a while to heat it up, so that the paste melts, and then press the broken upper part of the lipstick back onto the heated lipstick. When connecting with the lipstick, wipe off the protruding part of the lipstick with a cotton swab to make the surface of the paste smoother, then twist the lipstick back and put it in the refrigerator for refrigeration. After two or three hours, you can use it normally.

3. If the lipstick itself melts very badly, you can use it in a different way. Dig out all the lipstick from the lipstick tube, then put the lipstick paste on a clean metal spoon, slowly heat it with candlelight, let the lipstick slowly melt. After the lipstick melts, put it in a small metal box and use a lip brush to apply makeup each time you use it.

Lipstick can be placed in the refrigerator, but it is recommended to be placed in the refrigerator. It is not suitable to place lipstick in the freezer. When placing lipstick in the refrigerator, pay attention to adjusting the temperature to about 12 degrees. If it is too low, it is easy to melt or break the lipstick due to the large temperature difference when taking it out. Unopened lipstick can be placed in the refrigerator and taken out when it is needed. The storage time cannot exceed the shelf life. After opening, lipstick does not need to be refrigerated. After use, put the lipstick in a cool place and be careful not to expose it to the sun. Although it is very popular to put unopened cosmetics or skin care products in the refrigerator, it is recommended not to do so for a long time, because the temperature difference is large when taking it out, and it is also easy to cause the cosmetics to be damaged. If you really have a lot of hoarding, it is recommended to buy a refrigerator specifically for storing cosmetics. It is now available on the market, and the price is about 400 to 500 yuan.

The storage temperature of lipstick is about 25 degrees Celsius. Generally, if it is higher than this temperature, lipstick will melt easily. In summer, lipstick is the easiest to melt. This is because the temperature is often relatively high in summer. Although lipstick is generally tested for high temperature, its main ingredients are generally wax, oil, softener, etc., so lipstick is easy to melt at this time. As long as the temperature does not exceed 25 degrees Celsius or is not directly exposed to the sun, lipstick generally will not melt significantly. If you want the lipstick not to melt, we can choose to refrigerate it in the refrigerator, or place it in a ventilated place at room temperature. It is best to choose the latter to save it. After all, refrigeration in the refrigerator will cause the quality of the lipstick paste to deteriorate due to the cold and hot, thus affecting the use of the lipstick. Don't worry if the lipstick melts. We first use plastic wrap to fix the original shape, and then put it in the freezer of the refrigerator. Note that it is the freezer, not the refrigerated layer! Leave it for about an hour, and you will find that it has returned to its original state after taking it out. But this is not a long-term solution! No matter how good the lipstick is, it will not be useful if it is tossed back and forth and restored to its original state in time. We still need to store the lipstick well to prevent it from melting!

1. At home

The outer shell of lipstick is the most susceptible to dust and bacteria. You can try to disinfect the outer shell of lipstick by using an alcohol bath. Alcohol with a concentration of 70% is enough to kill bacteria, and the higher the concentration, the less likely it is to evaporate. Hold the lipstick in your hand and immerse it in a 70% alcohol solution. Stay for a few seconds to remove the bacteria on the outer shell of the lipstick. Let the lipstick dry naturally to extend the contact time of the remaining alcohol so that it can be disinfected while drying.

2. Outside

If you want to lend your lipstick to your bestie or friend, try to use a cotton swab or a small scraper to simply scrape a small portion of the lipstick to the back of your hand (near the base of the thumb), mix well and apply it on your lips. This ensures that the lipstick is clean and prevents bacteria from staying in the paste.

3. At the cosmetics counter

There are many invisible bacteria hidden in cosmetic samples, so when you want to try a new product, please remember to use it after disinfection. You can use a cotton swab to scrape off the surface of the lipstick, then spray alcohol (the waiter at the counter always carries a small bottle of alcohol), and finally use a disposable lip brush to try the lipstick.