Threading is an ancient form of hair removal that uses a cotton blend thread to remove hair from the follicle. The piece of string is wrapped around a follicle of hair and then twisted until the hair is pulled out to remove the hair. In terms of brow threading specifically, this technique allows the artist to best control the thread to achieve precise shaping results. When it comes to shaping brows, threading is the most precise form of hair removal, the BEST method for shaping brows, is gentle and ideal for sensitive skin, and removes hair from the follicle for lasting results.