Review (5/5): old barbers remedy
Made from potash alum, an alum block is an old staple in traditional barbershops and still in use in Europe. Its all-natural antiseptic properties work as an astringent that instantly closes razor nicks from shaving. soothes and cools razor burn when rubbed over the entire face after a shave. Run it under cold water and lightly rub it over your face to soothe and cool razor burn after shaving. Alum was used by the Egyptians more than 4,000 years ago. If you find a cheaper brand it is OK, there are not much differences between them.