The medical grade differs from the otc that we buy because it doesn't contain a certain toxin.
It works for superficial cuts...sometimes.
I've used it with various degrees of success.
It's not as durable as sutures normally. Keep in mind,
I'm not a surgeon. I only play one on TV.
The wound that requires a tourniquet is comparing apples to oranges.
There's a variety of wounds, cuts , abrasions, bites, punctures, etc...
Different treatments for different boo-boos the emergency room doctors will explain.
The last few decades I've been fortunate to practice medicine without a license.....
.....on myself.
Oops I forgot. I had a deep laceration that I was concerned about scaring. The urgent Care doctor put a band aid on it. LOL!
