When any part of the body is wounded, the damaged extracellular matrix helps trigger a cascade of chemical reactions in the blood that ends in fibrin - fibers that join togehter to start blood clots.
If Veti-Gel reaches the blood's platelet cells, it helps signal them to change shape and stick together to further help plug the hole in a blood vessel.
And when Veti-Gel comes into contact with the extracellular matrix in the wounded tissue, it binds to it, forming a kind of cover over the area. That eliminates the need to even apply pressure to the wound. "It looks like, feels like, and acts like skin."