Threading is a method of hair removal that originated in Asia and is now popular in many parts of the world. It involves twisting a thin cotton thread into a double strand and using it to pluck hair from the root. Eyebrow threading is a popular method of shaping eyebrows, as it is considered more precise and less painful than waxing or plucking. The thread is twisted and rolled over the skin, trapping hair in the twisted thread, which is then pulled out of the follicle. It can be done in a salon or spa, or at home with the right tools and technique.