Review (5/5): Best Potassium Alum I have ever purchased!
Cool and soothing after your shave (also has good anti-slip properties if you run on your fingers prior to to handling a metal razor handle, like my Merkur Progress). Also has very decent astringent properties. So it will stop light nicks/scratches from bleeding, but a full-on cut would still need a styptic, but I believe this is well within the scope of the product, so it does a little better than expected for alum vs, styptic. Great product; if I could, I would rate 6/5!