Why should you stop using hydrogen peroxide?

Why You Should Skip Hydrogen Peroxide for Cuts

For decades, hydrogen peroxide has been a staple in home medicine cabinets, often the go-to for cleaning minor cuts and scrapes. But despite its bubbly, seemingly "cleaning" action, it’s time to reconsider that reflex. The truth? Hydrogen peroxide can actually slow down the healing process and irritate healthy skin tissue.

When applied to a wound, the fizzing you see isn’t a sign of deep cleaning—it’s the peroxide destroying both bacteria and the surrounding healthy cells. This can delay healing and increase the risk of scarring. Our skin’s natural healing mechanisms thrive in a moist, protected environment, not one stripped by harsh antiseptics.

So, what should you use instead? Plain petroleum jelly—yes, the humble tube of Vaseline—is a surprisingly effective alternative. Multiple studies have shown it supports wound healing just as well as antibiotic ointments like Neosporin, but without the risk of allergic reactions. In fact, neomycin, a common ingredient in many antibiotic creams, is a well-known allergen and can cause contact dermatitis in some people.

The key to healing isn’t sterilization—it’s protection. Keeping a wound covered and moist with petroleum jelly helps create the ideal conditions for new skin cells to grow. Pair it with a clean bandage, and you’ve got a simple, safe, and science-backed routine.

Next time you nick your finger or scrape your knee, skip the peroxide. Your skin will thank you.