I have been wanting to do a post on makeup / cosmetic expiration for a while now. So here are some F.A.Q's that people need to know.
Cosmetics shelf life F.A.Q.
1. Do cosmetics expire?
Yes, as any other products.
2. What are production date, expiration date and PAO?
Production date (or manufacture date) is the date when your product was manufactured.
Expiration date is the date after which your cosmetic product will be expired and should not be used anymore. .
To clarify how long you can use your product once you opened it, Period after opening (PAO) sign is used. Try finding “open jar” sign with a number followed by the letter M, where number indicates how many months the product can be safely used for after opening.