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Brittany was a digital editorial intern for Reader's Digest and now contributes to RD.com as a freelance writer. Her stories have been picked up by Yahoo, AOL, MSN, INSIDER, Business Insider, Best Health, and other websites. In addition to writing for RD.com, she has also written for Westchester Magazine and uloop.com.

Your Toothpaste or Mouthwash Might Actually Be Staining Your Teeth

Next time you go toothpaste or mouthwash shopping, make sure you avoid these ingredients!