Use Hydrogen Peroxide
Hydrogen peroxide is a natural bleaching agent that also kills bacteria in your mouth. In fact, people have been using hydrogen peroxide for years to disinfect wounds because of its ability to kill bacteria.
Many commercial whitening products contain hydrogen peroxide, although at a much higher concentration than you will use. Unfortunately, there aren’t any studies to show the effects of rinsing or brushing with hydrogen peroxide alone, but several studies have analyzed commercial toothpastes containing peroxide. One study found that a toothpaste containing baking soda and 1% hydrogen peroxide led to significantly whiter teeth. Another study found that brushing with a commercial toothpaste containing baking soda and peroxide twice per day led to 62% whiter teeth in six weeks.
However, there are some questions regarding the safety of hydrogen peroxide. While heavily diluted concentrations appear safe, strong concentrations or overuse can cause gum irritation and tooth sensitivity. There’s also concern that high doses may cause cancer, but this has not been proven. One way to use hydrogen peroxide is as a mouthwash before you brush your teeth. Make sure you are using a 1.5% or 3% solution to avoid side effects. The most common concentration of hydrogen peroxide at the drugstore is a 3% solution.
You can easily dilute this concentration to 1.5% by mixing equal parts peroxide and water. Another way to use hydrogen peroxide is by mixing it with baking soda to make a toothpaste. Combine 2 teaspoons of hydrogen peroxide with 1 teaspoon of baking soda and gently brush your teeth with the mixture. Limit the use of this homemade paste to a few times per we
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