Can I brush my teeth with 3% hydrogen peroxide every day?

Brushing Teeth with Hydrogen Peroxide: Is It Safe for Daily Use?

Many people look for quick at-home remedies to brighten their smile, and a common DIY recipe involves mixing 3% hydrogen peroxide with baking soda to create a whitening paste. While this combination can help lift surface stains, understanding how to use it safely is essential for protecting your oral health.

To prepare the mixture, a small amount of hydrogen peroxide is blended with baking soda until a smooth paste forms. You gently brush your teeth for roughly two minutes before rinsing thoroughly with water. The peroxide acts as a mild bleaching agent, while the baking soda provides physical scrubbing power to remove discoloration.

However, dental professionals strongly advise against using this mixture on a daily basis. Baking soda is quite abrasive, and frequent use can gradually wear away your tooth enamel—the hard outer layer that shields your teeth. Because enamel cannot regrow once damaged, overusing abrasive pastes can cause increased tooth sensitivity and vulnerability to cavities. To protect your smile, limit this routine to once a week or less, and always speak with a dentist before starting any regular whitening regimen.