Well, I've decided to leave both salt and sugar out of my shaving soap in future. The 3 test soaps have been added to water at a 1:1 ratio to make a very creamy liquid soap
Thanks for sharing your conclusions! You've saved me from fiddling with those additives myself. I missed this thread before and was actually just considering putting in some sugar.
I'm still slated to try out goat milk as a water replacement for my recipe - next time!