A dazzling smile is worth a thousand words in today’s world. Unfortunately, not everyone has naturally white teeth. Not to mention, age, poor oral hygiene, and bad habits can negatively affect your pearly whites. Many OTC teeth whitening products claim to reverse tooth discoloration. You’ve probably seen amazing before and after pictures online, but they can be deceiving. Don’t throw money down the drain. Here are the facts you need about 4 at-home teeth whitening myths.