Final answer:
Chemical depilatories, such as gel, cream, lotion, aerosol, roll-on, or powder forms, are commonly used to remove unwanted hair from the underarm area.
Step-by-step explanation:
The type of wax used under the arms is typically a type of chemical depilatory, such as gel, cream, lotion, aerosol, roll-on, or powder forms. Common brands include Nair, Magic Shave, and Veet. These waxes are used to remove unwanted hair from the underarm area.