Actually, there are two places on the body that actually CAN experience permanent hair removal from PLUCKING ALONE, and those are the eyebrows, and the legs. Sorry, if you were hoping to pluck and get thicker, more plentiful brows.
If you have lost brow hairs over time, or just want to increase the amount and thickness of your brows, you would have to see to reverse thyroid conditions, which most Americans have some touch of due to the poisons in our food system (artificial/chemical ingredients) water (chlorine and fluoride) and air (choke, cough). Both over active, and under active thyroid lead to hair loss first in the eyebrows, but later, can develop on the head, and body.