I don't know if this goes under the heading of shave creams or soaps but the question is about Pre Shaves when you think about it, once you start putting on cream or soap on your face with your brush doesn't the Pre Shave really just mix with the soap or cream? How much is really left on the skin and if they are effective which soaps and creams benefit from them? Right now I'm using Poraso and I was using Castle and Forbes but I didn't see much of a difference between Poraso with pre shave and without pre shave what do you guys think?