The shelf life of 1.tf lipstick is printed on the bottom of the package. Product batch number inspection qualified date. The shelf life of lipstick will be shortened after opening, which depends on the opening date. 2.tf lipstick production date can be seen from the product batch number, and the third digit represents the production year. 3.tf lipstick has a shelf life of three years, and it is generally recommended to use it within one year after opening.