It’s true, ladies: your makeup goes bad, just like your milk. Old makeup products can be a breeding ground for bacteria, but since cosmetics manufacturers aren’t yet required by law to put expiration dates on their products, it’s up to us to remember when to ditch the expired ones.
Below are some guidelines for when to toss each type of makeup, and here’s a tip: if you have trouble remembering when you bought it, get one of those nifty White-Out pens and scribble the purchase date onto the container as soon as you get it home. (You can always write it on the bottom if you love to parade out your new Diorshow in the bathroom with your friends.)