Which one of the following is not a method of epilation?

Epilation refers to the process of removing hair from the root, providing longer-lasting results compared to methods that only trim the hair above the skin's surface. Shaving is specifically a method of depilation, where the hair is cut at the surface of the skin rather than removed from the follicle. This means that although shaving effectively shortens hair length, it does not contribute to the removal of hair from the root, thus leading to quicker regrowth.

In contrast, waxing, threading, and laser treatments are methods of epilation. Waxing pulls hair out from the root using adhesive wax applied to the skin. Threading involves a thin thread that is twisted to trap and remove hair follicles. Laser hair removal uses concentrated light to target hair follicles for destruction, preventing future hair growth. Each of these methods provides a more permanent solution compared to shaving, making them true forms of epilation.