There was actually a study done on it and they demonstrate vastly improved wound healing over the control. They chose marine-based collagen because it doesn't have the possibility of transferring mammalian diseases.
They have a rival company that is using soybean based protein for improved wound healing that is a few years ahead in research. But, according to the article, they are both going to attempt FDA approval soon.
This seems like it would be a great thing to combine with skin procedures, such as needling, dermarolling or laser.