And isn't aluminum extremely bad for ones health?
Antiperspirant does two things. It kills sanitizes the area so it kills resident bacteria that eat the oils and secretions in the skin and produce odor. The aluminum compounds plug the pores and prevent sweat secretion. But be careful, aluminum has been implicated in Alzheimers disease.
Well, I'm looking at my deodorant now, it looks like aluminum zirconium tetrachlorohydrex is the active ingredient, the actual anti perspirant part. This is probably why it is a bad idea to eat it.
