You've been holding onto that mascara since 2024, haven't you? Time to face facts: your makeup drawer is basically a petri dish, and E! Online spoke to professional celebrity makeup artist Thynna Wagenblast to reveal exactly what needs to go—and why.

Yes, makeup absolutely expires. Using old formulas isn't just gross—it can irritate and damage your skin. Even if you don't see immediate side effects, expired products don't perform the way they're supposed to, especially anything with active ingredients.

The Expiration Timeline

Eye products like mascara and liquid eyeliner should be replaced every 3 to 6 months. They're closest to your eyes and are bacteria magnets. Wagenblast says to look for the PAO symbol on packaging—that little open jar icon that shows shelf life in months (6M, 12M, or 24M).

Lip products last longer: typically 1 to 2 years. Foundation and concealer last 6 to 12 months after opening. If anything smells off, feels weird, or changes color, toss it immediately.

Keep Your Kit Fresh

Wagenblast recommends keeping products tightly sealed, storing them in cool, dry places away from direct sunlight, and washing your brushes at least once a week. These steps keep bacteria at bay and extend product life.

Prime Day offers deals on foundation, mascara, and blush, so you can swap out those old palettes. Your skin will benefit.