Cheat Sheet: Exactly When You Need to Replace Your Makeup

As for cream products, they can last up to around two years, especially if you keep whatever tools you use to dip into them (brushes, puffs, makeup sponges, etc.) clean. Also, it happens to be pretty easy to tell when to get rid of them: They can start to smell a little, well, rancid. "If a cream product's smell changes, it's time to throw it out," says Stoj.

Image via @onomiebeauty