I believe i have been using the razorrock alum in the plastic box. I drilled a few holes in the top of the box so it could dry better when closed. I seen some time back, someone had some alym that was clear and not milky. Thinking i might try to find some of that. Not that its any better than the milky stuff. Just looks nicer.
Alum is good stuff. I just dont leave it on my face for more than a minute before rincing it off.