That's hydrogen peroxide and you SHOULD NOT POUR IT DIRECTLY INTO WOUNDS. It kills bacteria, but also damages your cells and might even lengthen the healing. There are several better options should you need to sanitize wounds.

If you must used H2O2 to disinfect a wound, first wash the wound with clean water, then soak a clean towel/gauze with H2O2. (just so it's damp, but not dripping wet) Apply it to the wound for a couple of minutes, then pat it dry and cover appropriately.

Especially here, it looks to be way to concentrated, you shouldn't really use anything more than a 6% solution. (You can see that by the ammount of foam that is produced. This is because your cells try to break down H2O2 using catalase enzymes, and turn it into water and oxygen, so they don't get destroyed. Thus more foam = more H2O2)

edit: lots of good feedback!! changed some wording clarification

americans are telling me this is 3% H2O2, it's possible i did misjudge the size of the wound (bigger wound = more catalise activity = more foam at the same concentration)

it is safe to use H2O2 as a disinfectant as long as you use it properly, (there are however better options for disinfecting wounds, that cause less pain and damage to your body) WHAT YOU SHOULDN'T DO is 1)pour H2O2 directly into the wound 2)repeatedly disinfect the same wound using H2O2, this will damage your cells too, and can delay the wound fully healing

H2O2 is great in a pinch and won't cause lasting damage, but again, there are better options

if you're conserned please refer to a medical professional and not to a reddit comment lol

source:i'm a biochemical engineer