Tiny bacteria (staphylococcus hominis) live in your armpit, gobbling up your sebum and sweat and excreting a waste product that creates a rank smell.
PITZ annihilates this little bacteria, culling it's colonies and eliminating the reason for the foul smell. Simple as that.
Rub a few pumps of PITZ between your hands and then apply to each armpit. Apply every 1-2 day for best results. Takes a few days of application to start working.
PITZ is a basically a stripped down version of the Bacteria Blaster gel toner used to kill acne. I was using bacteria blaster as a deodorant for years and finally made a version geared for the underarm!