Hydrogen peroxide is a highly versatile chemical found in many households. It has more than a dozen uses, including cleaning, disinfecting, whitening, and more. Continue reading to learn more about all the potential uses for hydrogen peroxide.

How Does Hydrogen Peroxide Work?

The chemical formula of hydrogen peroxide is H₂O₂. It has one extra oxygen atom than water (H₂O). It comes in a brown bottle and resembles water in appearance.

Hydrogen peroxide (H₂O₂) primarily functions as an oxidizing agent, breaking down into oxygen and water and readily donating oxygen atoms. The release of oxygen atoms causes hydrogen peroxide to bubble up in a wound or foam when applied to various objects or surfaces.

The ability to release oxygen allows hydrogen peroxide to disinfect and kill potentially harmful bacteria, whiten and lift stains, and clean by breaking down substances like soap scum.

Common Household Uses of Hydrogen Peroxide

Three percent hydrogen peroxide works well as a household cleaning solution. Here are some uses of hydrogen peroxide:

Cleaning & Disinfection

Clean kitchen surfaces, including your kitchen sink, and grout in kitchen tiles.
Spritz hydrogen peroxide from a spray bottle to disinfect your cutting board, reusable grocery bags, and the inside of your refrigerator. Wipe dry with a paper towel afterwards.
Remove stains from ceramic cookware.
Dissolve burnt food on bakeware.
Remove stains from marble countertops with a paste of hydrogen peroxide and flour. Apply the pasty mixture to the stain, cover it with plastic wrap, and leave it to sit overnight.
Disinfect a kitchen sponge with hydrogen peroxide. This deep clean can kill bacteria like E. coli and Salmonella. Use half hydrogen peroxide and half hot water.

Laundry

Brighten whites, remove stains, and eliminate odors from laundry. Add half a cup to your wash cycle to whiten your whites.
Remove unsightly armpit stains from sweat on your clothes. Apply hydrogen peroxide and baking soda, work it in with a soft brush, and allow it to sit for 20-30 minutes or until the stain disappears or fades.
Use it undiluted to remove blood stains and other organic stains.
Use a mixture of liquid detergent or dishwashing detergent (dish soap) with hydrogen peroxide in a ratio of 2:1 as an effective stain remover. This mixture can remove wine stains, food stains, and grass stains from your laundry.

Bathroom

Clean bathroom tiles and tubs by mixing a little hydrogen peroxide and water.
Mix baking soda with hydrogen peroxide to make a paste and whiten mildew-stained grout lines.
Clean your shower curtain, toilet brush, and toilet bowl with equal parts peroxide and water to keep them sanitized.
Spray hydrogen peroxide onto a lint-free cloth to clean your mirror, leaving it looking nice and shiny. Mix equal parts peroxide and water for a thorough cleaning.

Personal Items

Soak nail tools and beauty tools like eyelash curlers, makeup brushes, foot files, and tweezers in hydrogen peroxide to disinfect them.
Disinfect toothbrushes and mouthguards by rinsing them in hydrogen peroxide. Make sure to rinse them thoroughly with water before using them to avoid contact with hydrogen peroxide directly.

Other Household Uses for Hydrogen Peroxide

Run your humidifier for half an hour with a mixture of two parts hydrogen peroxide and one part water to keep it clean. Add an essential oil for a nice aroma.
Mix one cup of hydrogen peroxide with one cup of water and spray it on your mattresses to kill dust mites. Allow the mattresses to air dry completely and then remake your bed with clean linen.
Use it to disinfect your kids’ and pets’ toys. Spray hydrogen peroxide to kill germs and lingering bacteria without using harsh chemicals.
Mix one part hydrogen peroxide with four parts water and use it to fertilize indoor and outdoor plants. Make half a bottle and use it immediately. Do not store the mixture.
Sanitize gardening tools with hydrogen peroxide to prevent the spread of fungi, insects, and other plant diseases among your plants.

Health & First Aid Uses of Hydrogen Peroxide

Remove earwax buildup and treat ear infections. Put your head to the side and place a few drops of 3% hydrogen peroxide in the affected ear with a plastic dropper or syringe. Leave it in for 1 minute and then tip it out on a tissue.
Reduce bacteria in the mouth if you have canker sores. Mix equal parts hydrogen peroxide and water, and dab it on the canker sore with a cotton ball twice a day. You can also use diluted hydrogen peroxide as a mouth rinse.
Disinfect your oral and nasal cavities if you have symptoms of respiratory illnesses like COVID-19. Use half a cup of three percent hydrogen peroxide to gargle or use it as a nasal spray.
Whiten discolored teeth with a homemade toothpaste. Use a 2:1 ratio of hydrogen peroxide and baking soda.
Whiten discolored nails. Add a few drops of hydrogen peroxide to warm water and apply to your nails with or without baking soda.
Lighten colored hair. Make a paste of hydrogen peroxide and baking soda, apply it to wet hair, and leave it in for 30 minutes.
Disinfect feet by soaking in a mixture of hydrogen peroxide and warm water.

Note: Experts no longer recommend wound cleaning with hydrogen peroxide because of the risk of damage to the tissue.

Other Uses for Hydrogen Peroxide

Sterilizing medical equipment.
Bleaching textiles and paper.
Special uses like restoring plastics.
Science experiments.

Hydrogen Peroxide Uses: FAQ

Is Hydrogen Peroxide Safe For Wounds?

Three percent hydrogen peroxide cleans wounds and stops bleeding, but it does not promote wound healing and may even delay it.

If you have a minor cut or scrape, healthcare professionals may recommend cleaning the wound with cold water, followed by a petroleum jelly or antibiotic ointment, and a bandage.

What’s the Difference Between Medical-Grade and Food-Grade Hydrogen Peroxide?

Medical-grade hydrogen peroxide contains 3% hydrogen peroxide and 97% water. Food-grade is much more concentrated (35% hydrogen peroxide).

Never swallow hydrogen peroxide, as it can cause mouth blisters, internal bleeding, vomiting, and abdominal distress.

Is Hydrogen Peroxide The Same As Bleach?

No, hydrogen peroxide is not the same as bleach (sodium hypochlorite), although both can act as oxidizing agents and disinfectants.

Is Hydrogen Peroxide The Same As Rubbing Alcohol?

No, hydrogen peroxide is not the same as rubbing alcohol (isopropyl alcohol), although both are antiseptics. They are used for different purposes.

What Happens When You Mix Hydrogen Peroxide and Baking Soda?

Mixing hydrogen peroxide and baking soda creates an effective cleaning solution that can cut through soap scum and hard water stains.

Note: Do not store mixtures of hydrogen peroxide and baking soda in a closed container because it can explode due to the buildup of carbon dioxide.

What Happens When You Mix Hydrogen Peroxide and Vinegar?

When hydrogen peroxide and white vinegar are mixed, they produce peracetic acid, which is corrosive and can damage your skin, eyes, nose, throat, and lungs at high concentrations. Never use these two together.

What Happens When You Mix Hydrogen Peroxide with Table Salt?

Mixing hydrogen peroxide with table salt can lead to an explosive reaction and potentially start a fire. This experiment is only suitable in a laboratory under controlled conditions.