Alum Block
An Alum Block, also known as an Alum Stone, Alum Bar or Alum Crystal, is a crystal-like and natural mineral stone that both soothes and heals the skin after you have shaved the area.
The Alum Block is moistened with water and gently rubbed over the shaved area to act as an antiseptic and to combat a number of post-shaving related skin problems including razor bumps, razor burn and redness.
