Alum is an ingredient that features highly in all of our current range of natural deodorants. Alum has been used for many years, in the Far and Middle East, as a deodorant, astringent and basic antiperspirant. It is also used on cuts after shaving because of its styptic properties (stops bleeding and closes pores).
People have been concerned with deodorising for many thousands of years. Ancient techniques have included covering up with heavy scents, shaving underarm hair, putting perfumed fat on your head and using natural salts.