Threading may seem like a simple or primitive hair removal method, but experienced technicians make it work beautifully. They begin with a loop of cotton thread that is about the thickness of dental floss. Then, they twist the loop to create a series of "knots" in the middle. Finally, practitioners move the twisted area rapidly back and forth across rows of hairs, grasping them at the root and removing them quickly and completely. No chemicals or other tools are needed and it is ultra hygienic.