1. For some cosmetics, there will be an open bottle cap logo in the lower right corner or bottom of the bottle body. The logo has "12M" or "6M". M is the abbreviation of Month in English, which means the month. This logo means that cosmetics can be stored for 12 months or 6 months after being opened.
2. If the cosmetic bottle does not have an open lid, pay attention to the date of use of various cosmetics. Cosmetics are generally used up one year after opening.
3. The shelf life of the cosmetic bottle or packaging is the unopened time, which can generally be 3-4 years. But once opened, most of them need to be used within half a year or one year. Instead of the 3-4 years shown on the bottle.