Cyanoacrylate. Excellent wound closer if the wound is cleaned properly. That was its intended purpose. I use it on wood laminate rings, and cuts. Belt sand it off the fingers every time I work with it. Nasty stuff.
It works best on skin cracks and damaged human nail structures. involved with battlefield trauma. It can close a secured gut wound for transport. Grows out of untreated wound in a day or so.
We have better stuff now.
The only thing I can reliably get super glue to stick together is my fingers.