TF lipstick is a relatively high-end lipstick in the lipstick industry, so what do you think of the code name of TF lipstick production date? The production date of TF lipstick can be seen from the production batch number. Generally speaking, the third number indicates the year of production, from 0 to 9 means from 20 10 to 20 19, and the second number indicates the month of production, from 1 to 9 means from 1 to September, and from 10 to 650. Generally speaking, the production batch number is marked on the bottom or on the outer box. Lipstick should be used up within 0/2 months after opening, and the unopened lipstick can be kept for three years.