What Does an Alum Block Do for Your Shaving Routine?
If you've ever caught a glimpse of a translucent, salt-like cube sitting on a barber's counter and wondered what does an alum block do, you're looking at one of the oldest grooming tools in history. It doesn't look like much—honestly, it looks more like a paperweight or a piece of decorative crystal than a skincare product—but for anyone who shaves with a razor, it's a total game-changer. ...