What is the shelf life of lipstick?

Winter is here, and lipstick is a must-have item for many girls. The market for men's lipstick is also on the rise, but gender differences have led many men to not apply lipstick frequently, and they just take out the lipstick from the previous year and reuse it. But is such lipstick expired?

Lipstick shelf life

Even though it is not food, cosmetics like lipstick also have a shelf life. According to the national regulations, the shelf life of lipstick is about 3 years. However, after opening, lipstick is often in contact with air, which will inevitably breed bacteria. In this case, it is best to use it up as soon as possible. For the sake of your own health, it is best not to use lipstick that is more than a year old.