IHA is a Potassium Alum Based Styptic Pencil with a powdered form of the hard crystalline Potassium Alum Block, which becomes active when brought into contact with water and skin.

Long believed to possess incredible healing powers we now understand it is an effective antiseptic and anti-perspirant that provides a balm like film over the skin. Such a seal puts a halt to bleeding and keeps moisture locked in long after the Shave.