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Yes it does. I quote from a medical site:

"Hydrogen peroxide can kill bacteria on contact and has been widely used for that purpose. However, straight hydrogen peroxide is unstable and rapidly loses its effectiveness when exposed to air or light."

Hope this helps. (:

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Q: Does hydrogen peroxide lose its ability to clean wounds if exposed to light?
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Is hydrogen peroxide good for cuts?

Depending on the severity and cause of the cut, hydrogen peroxide may or may not be useful. It is highly recommended not to use hydrogen peroxide on deep wounds. For small wounds with debris, hydrogen peroxide is useful to dislodge small particles within the wound. In this case, it is recommended to rinse the wound with clean, running water as well.


What does peroxide mean in this sentence Rachel was waiting with a bottle of peroxide in her hand?

Peroxide in this case refers to hydrogen peroxide, a chemical often used to disinfect wounds and bleach hair.


Is hydrogen peroxide good to apply on bruises for recovery?

No. Hydrogen peroxide is used on wounds for its antiseptic properties. If the skin hasn't been broken, there's no reason to use an antiseptic.


What is the meaning of hydrogen peroxide?

It is an antisceptic solution sold in bottles. Used to kill germs in wounds.


Is hydrogen peroxide good for wounds?

Yes it is good for you. It cleans the germ's, so you don't get infected


Is H2O2 use for minor skin wounds?

Also, know as hydrogen peroxide, H2O2 does work well to treat minor skin wounds as a cleaning agent.


Is hydrogen peroxide okay to put on puppies?

Why use it? If there are wounds it won't do much but if there is no point in doing so, DON'T do it.


Is it OK to use hydrogen peroxide to rub on a cat's gums for inflammation?

No, it is not OK to use hydrogen peroxide to rub on a cat's gums for inflammation because it is too harsh a product. There is also the risk that the cat will swallow the hydrogen peroxide. Hydrogen peroxide should never be used on: mucus membranes, open wounds, or internally. This applies to anyone or any animal. It kills cells on contact.


CAN you USE hydrogen peroxide to steralize?

its not comonly used directly on wounds but can still be used to clean around the site or tools.


Should you clean a deep laceration on the back of your hand that has been stitched shut with hydrogen peroxide or Neosporin or something else?

Hydrogen Peroxide is the best product for cleaning wounds. After using it, an antibiotic cream could then be used if desired.


Is hydrogen oxide a gas?

No Hydrogen Oxide is usually written H2O2 and is called hydrogen peroxide and is an unstable liquid used to cleanse wounds. Dihydrogen oxide is H2O and is usually called water.


Why does hydrogen peroxide foam when you put it on a cut?

There is an enzyme in your body that breaks hydrogen peroxide (H2O2) into hydrogen (H2) and oxygen (O2). These are gases that form bubbles in the water from the hydrogen peroxide and fluids from your body. The idea is that this cleans wounds by getting under the dirt and other particles before being broken down. Then the bubbles lift the dirt and grime out of the wound to wash them away easier.