I don't rinse my face between passes, but I do wet a hand and re-moisten. I find that it helps with keeping my soap nice, slick and comfortable. I have crazy sensitive skin that dries out very easily, but I have not noticed a difference if I just lather away or rehydrate in between, but it is a bit more comfortable if I do. I certainly do not think either one could be bad for you, it just seems to be a matter of preference.

Happy Shaving.