Threading is an ancient method of hair removal originating from the Eastern World. In more recent times it has gained popularity in Western countries.
In threading, a thin cotton thread is doubled, then twisted. It is then rolled over areas of unwanted hair, plucking the hair at the follicle level. Unlike tweezing, where single hairs are pulled out one at a time, threading can remove short lines of hair, creating a very clean, precise hairline. The method is the fastest and most precise. Advantages cited for eyebrow threading, as opposed to eyebrow waxing, are that is provides more precise control in shaping eyebrows and is gentler on the skin.