1, can I still use lipstick after it expires?
Lipstick can't be used when it expires. Lipstick itself is a cosmetic containing heavy metal lead. After expiration, the composition will change. If it is applied to the lips for a long time, it will be eaten with food invisibly, which is harmful to health. In general, lipstick should be discarded after one year of opening.
2. What will happen if I use expired lipstick?
If lipstick has only expired for a short time, and it has only been applied for 1-2 times, there may be no symptoms. It is good to stop using it in time after finding it. However, some people will have allergic symptoms after using expired lipstick, such as red, swollen and itchy lips, and even fester in severe cases. At this time, you need to see a doctor in time.
3. How to save lipstick to prevent premature expiration?
Although the shelf life of lipstick is generally 3 years, in fact, lipstick can be kept for up to one year after opening. If it is summer, it is best to use it up within 3 months after opening. In order to prolong the shelf life of lipstick, it is suggested to pay attention to the following points when storing lipstick:
1, stored in a low temperature and dry place, away from direct sunlight, not in your pocket. Lipstick softens and melts easily at high temperature.
2, sealed storage, lipstick cover tightly after use, so as to avoid dust and bacteria in the air pollution lipstick.
4. Tips
In order to prevent the misuse of expired lipstick, it is suggested that female friends regularly clean their cosmetic bags and find out the expired cosmetics in time.
If lipstick is out of date, it can be used as a brush for children to play with. But if it's a little girl, be sure to tell her not to put it in her mouth.
5, the harm of long-term lipstick
1. Sweet lipstick contains saccharin. If eaten in excess, it has been proved to cause cancer.
2. The artificial pigment in lipstick may be transformed into mutagen under ultraviolet irradiation, leading to cancer.
3, preservatives, antioxidants BHA, these substances have been proved to be quasi-carcinogens, such as preservatives (parabens) can cause breast tumors.
The main components of lipstick are lanolin, wax and dye. Because the composition of lanolin is complex, it is easy to cause allergic reactions, such as chapped lip mucosa and peeling, and sometimes it will feel itchy or slightly painful lips.
5. Lanolin lipstick has strong adsorption, which can adsorb dust, bacteria, viruses and some heavy metal ions in the air on the lip mucosa. When drinking water and eating, people will bring lipstick and its harmful substances into their mouths, which will directly enter the body and affect their health.
6. The coal tar dyes used in all lipsticks are terrible carcinogens, and the content of this substance in lipsticks has greatly exceeded the allowable content in food. After wearing lipstick, when talking, drinking tea and eating, it is inevitable that lipstick will be licked off and inadvertently enter the human body, then these carcinogens will naturally enter the human body and affect human health.
7. Foreign data show that among young female cancer patients, 18.2% is related to lipstick. Lipstick contains a lot of heavy metals such as lead and cadmium, and lead is cumulative. Long-term inhalation may lead to chronic lead poisoning, anemia, abdominal pain, acute renal failure and cerebral neuropathy.