Really remarkable!
I repeatedly saw alum as a recommendation on shaving sites and shaving tip videos. Having little lose, I gave it a try to combat my razor bumps.  The first time I tried this stuff it was AMAZING.  I used it before shaving, applying it before the creme, and the shave felt better, smoother, and closer.  Afterwards, I had less razor bumps and after a few months they had practically vanished.  So the least I can say is that it worked for me.<br /><br />After losing it while traveling, I shaved without it for a few weeks and did my typical aftershave routine.  Bam!  Razor bumps.  And I agree with other reviews: these things are so dense that as small as it is, it will last you a long time!  After a few months, I couldn't even tell it had been used.
Rating: 5 stars