I stopped using alum shortly after beginning wet shaving at the start of 2013 because it seemed to irritate my skin. Witch Hazel works much better. Of course, my technique was not refined early on but I'm getting consistently good shaves these days. As many say, put it down for a while and then give it a go again. I did this today with the Alum Block and it totally irritated my skin and pretty much ruined an otherwise excellent shave.
Going back to my Thayer's... No more alum for me!
Going back to my Thayer's... No more alum for me!