I agree that DermMatch will transfer onto things (e.g., your pillow case) if you use a lot of it. I did that for a while to cover like all of my head. But it never came off with water, and is good for hiding little bald spots left by seams etc.

Prothik may be better, for all I know, but I've used Fullmore, and found that it also transfered onto things, and you could always tell where it had been sprayed due to distinct color differences.