The shelf life of mac lipstick is generally three years. As long as it is unopened, it should not deteriorate during the shelf life. The production date of mac lipstick will be marked on the outer packaging of the product. As long as we find the exact production date, we can know when it will expire. If lipstick has been opened, the shelf life will be shortened, and the shelf life should be judged according to the opening date.

The shelf life of mac lipstick is similar to that of most other brands, and it can last for three years without opening it.

The shelf life of lipstick packaging is also very easy to distinguish, and the production date of mac lipstick is marked according to three digits.

The first digit represents the product number, and the second digit represents the month, 1-9 is1-September, and a, b and c represent 10,1,65438+February respectively. The third number represents the year.

After finding the exact production date, you can judge when it will expire. The unopened lipstick will not go bad before it expires. If there is, it can't be used any more.

If the lipstick has been opened, the shelf life will be shortened. According to the date of opening, it is generally best to use up lipstick within one year after opening.