First, a quick chemistry lesson that won’t make your brain hurt. Hydrogen peroxide is basically water with an extra oxygen atom—H₂O₂ versus H₂O. That extra oxygen makes it a powerful oxidizer, which is a fancy way of saying it’s great at breaking stuff down, like viruses and bacteria. Think of it as a tiny, angry Pac-Man chomping through germs.
When you pour it on a cut, it fizzes because it’s reacting with your blood and tissue. That fizz is actually oxygen bubbles doing the cleaning work. Fun fact: that same fizzing action can also break down the protein shell of a virus. So yes, in theory, it’s a germ-busting dynamo.
The Big Question: Does It Zap COVID?
According to the CDC and EPA, hydrogen peroxide is listed as a disinfectant that can kill SARS-CoV-2, the virus that causes COVID-19. But—and this is a big, dramatic “but”—it’s not as simple as spraying it on your hands and calling it a day. The concentration matters, folks. Most household hydrogen peroxide is only 3%, which is weak sauce for a serious virus.
You need to leave it on a surface for at least one minute (sometimes longer) to do the job. And please, please don’t drink it or inject it. That will not end well. I promise you, the only thing you’ll kill is your own good time.
