Hydrogen peroxide that is diluted with water is safe to gargle and use as a mouthwash, as long as you don’t swallow it. Here are ways to use it safely. Skip Navigation ...

Hydrogen peroxide that is diluted with water is safe to gargle and use as a mouthwash, as long as you don’t swallow it. Here are ways to use it safely. Skip Navigation ...

Hydrogen peroxide that is diluted with water is safe to gargle and use as a mouthwash, as long as you don’t swallow it. Here are ways to use it safely. Skip Navigation ...

Hydrogen peroxide that is diluted with water is safe to gargle and use as a mouthwash, as long as you don’t swallow it. Here are ways to use it safely. Skip Navigation ...

Hydrogen peroxide that is diluted with water is safe to gargle and use as a mouthwash, as long as you don’t swallow it. Here are ways to use it safely. Skip Navigation ...

Hydrogen peroxide that is diluted with water is safe to gargle and use as a mouthwash, as long as you don’t swallow it. Here are ways to use it safely. Skip Navigation ...

Hydrogen peroxide that is diluted with water is safe to gargle and use as a mouthwash, as long as you don’t swallow it. Here are ways to use it safely. Skip Navigation ...

Hydrogen peroxide that is diluted with water is safe to gargle and use as a mouthwash, as long as you don’t swallow it. Here are ways to use it safely. Skip Navigation ...

Hydrogen peroxide that is diluted with water is safe to gargle and use as a mouthwash, as long as you don’t swallow it. Here are ways to use it safely. Skip Navigation ...

Hydrogen peroxide that is diluted with water is safe to gargle and use as a mouthwash, as long as you don’t swallow it. Here are ways to use it safely. Skip Navigation ...

Hydrogen peroxide that is diluted with water is safe to gargle and use as a mouthwash, as long as you don’t swallow it. Here are ways to use it safely. Skip Navigation ...

However, another study from 2014 found that a commercial mouthwash containing only 1.5% hydrogen peroxide caused a noticeable lightening in human tooth enamel after 4 weeks.