Eyebrow threading is a form of epilation. The process removes the entire hair, including the root, rather than cutting it. It starts with cleaning the skin under and around the eyebrows with a gentle cleanser or quick wipe with alcohol to make sure the area is sterile, and it is easy to see the hairs. Cotton thread is twisted and moved over the unwanted hair in a swift motion. The twisting motion traps hairs between the threads and lifts them out whole.