Ethanol is used in some after-shave lotions and deodourants. What properties makes it suitable for these uses?

Its ability to denature bacterial proteins

Explanation:

Ethanol is a rapid antimicrobial against bacteria, fungi and viruses. When 70% concentrated Ethanol is in contact with a single celled organism, the it coagulates the protein at a slower rate, creating enough time for it to penetrate the cell before coagulation can block it. This will make the whole cell coagulated thus killing the cell.