You can buy it in shops, and it will normally come in a dark brown bottle.
The reason for this is because hydrogen peroxide breaks down into plain water when it is exposed to heat, light or air.
Hydrogen peroxide is often used in salons to sanitise metal tools such as tweezers, manicure tools and eyelash curlers.
Staff do this to avoid infecting customers, and you can use it for this purpose at home as well.
Hydrogen peroxide can be used to sterilise your retainer, toothbrush, chopping boards, fridges, sponges and other things that typically attract nasty bacteria and put you at risk.
Does hydrogen peroxide kill germs?
Yes, hydrogen peroxide does kill germs.
It kills a wide range of bacteria, yeasts, fungi, viruses and spores.
You can buy hydrogen peroxide at three percent in stores, and this is strong enough to clean surfaces at home.
Does hydrogen peroxide kill Covid-19?
Yes, hydrogen peroxide can kill Covid-19.
Coronavirus spreads from person to person very easily but it is easily destroyed by most disinfectants, according to experts.
This means keeping up a thorough cleaning regime at home will help you to keep all germs, including coronavirus, off your surfaces.
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