Alum, a natural mineral found in Europe and used by the Egyptians more than 4,000 years ago, is a shaving essential for any well-groomed man. Its antiseptic properties calm razor burn and soothe irritations, and help stop bleeding in the event of a nick or cut. The Art of Shaving Alum Block and Styptic Pen are appropriate for all skin types and can be used as an astringent for oily complexions.