Eh, in general, the use case for peroxide instead of anything else on wounds just isn’t there.

Anything that’s meant to kill off small living cells is going to do exactly that, and not give a damn if those cells are bacteria or your body. Now, it is true that not all chemicals will kill off every given microbe equally, and that applies to your skin/muscle cells as well. That still doesn’t mean that any given agent is going to do anything useful for your healing.

If the concern is microbes, germs, quantity of rinsing simply does a better job at cleaning a wound of them. A lot of water is better than a minimal use of peroxide or alcohol, or whatever. For one thing, if you have running water, you don’t have to keep opening new bottles. If you’re out in the woods, you can still have a better chance of a large amount of water being available compared to finding a magic spring that spouts peroxide. So just the reality of availability makes carrying that kind of thing kinda pointless.

It’s easy to look at all the bubbling peroxide does and think it’s really getting in there and pulling things out, but it isn’t true. If anything, the bubbling is reducing contact time with anything it’s supposed to be killing. So you’d have to continue rinsing with it. And then you’re right back to where water alone is better.

You don’t need soap for wounds either. Indeed, you shouldn’t be using it in wounds in the first place. That’s never been a recommendation that I’ve seen. Not surprising that it would irritate a wound bed. You can use soap on the skin around a wound, but even that isn’t necessary, and it’s not useful unless there’s contamination from something that water alone won’t clear away. The only time I can think of where soap would be used directly in the boundaries of a wound would be with some kind of thick, oily substance being in it. Even then, I’m dubious as to how much benefit you’d get compared to just water or saline with gentle wiping of the wound.

Peroxide also isn’t going to do anything positive to reduce bleeding. The opposite, actually, since it’s going to break up platelets trying to form a scab. You might wash away enough blood from a minor cut that it takes longer to be visibly bloody again, but that just means it wasn’t bleeding fast to begin with.

And, once you’ve used peroxide, you still have to rinse because if you don’t, not only are all the particulates still in the wound, so is the peroxide. So you’d have the stuff sitting there killing cells well after you bandage the wound, and that’s not a good thing at all. So why waste money and time when you can just rinse instead?

Even if you have a contaminated water supply, you’d still be better off buying saline in bottles for wound cleaning than peroxide.

You may or may not notice a difference in healing if you had identical wounds at the same time and used different methods to clean them. That’s not the kind of experiment you can get away with clinically. But, if you compare outcomes from enough people over time, it starts showing up that wounds heal at least a tiny bit slower, and often less evenly. I’ve never read anything about scar formation, but I suspect that if you did it with two wound on the same person, you’d end up with a measurable (if miniscule) difference there.

I’m not saying to never ever use it. It’s better than nothing at flushing a wound out. If you aren’t in a situation where anything else is possible, go for it. But I wouldn’t reach for it first.