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Step Two: Give everything a scrub-down

Now that you've purged all products that were past their prime, move on to cleaning your makeup bag, which is a breeding ground for bacteria. Spot clean any makeup smears with a makeup wipe before tossing it in the washing machine. Also, take the time to deep clean your makeup brushes with liquid soap and warm water, then rinse and air-dry to get them back in tip-top shape. And once you've cleaned everything up, make sure you keep your makeup bag away from humidity and heat to prevent increased bacteria build-up.

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