Sharing your makeup brushes or blenders is a bad idea, too. Using someone else's brush can be particularly rough on your skin and if you make a habit of sharing, your existing skin conditions can get worse. Even if you are using your own brushes, you need to freshen them up after you use them to keep the bacteria away.
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Lipstick
Be selfish about your lip glosses and lipsticks — you have good reason to be. Glosses, especially, harbor bacteria and they travel faster thanks to the wet formulas.
