Does Makeup Expire?
Yes, makeup expires and your products should always come with an actual use-by date or length of time post-opening that signifies when you should stop using them.
How to Tell How Long Makeup Lasts
There are general guidelines for how long you should keep each type of makeup after opening, but there’s one handy tip to know: A lot of your makeup has a little symbol on the packaging that indicates when you should throw out your products. It’s called a POA, or period-after-opening, symbol.
Is It Okay to Use Expired Makeup?
According to the Mayo Clinic, using old products can result in serious issues. At a minimum it could lead to clogged pores and breakouts, but you could also suffer from irritation and serious infections. When in doubt, just throw it out!
How Long Can You Keep Makeup?
Since different types of makeup expire at different times it can be hard to keep up with all those dates. That’s okay, just remember to check your POA.
Source: L'Oréal