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

Epilation refers to the process of removing hair from the hair follicle, resulting in longer-lasting hair removal compared to methods that only cut the hair at the surface level. Shaving does not qualify as a method of epilation because it simply trims the hair at the skin's surface without affecting the hair follicle itself. This means that hair will quickly regrow after shaving, often within a few days.

In contrast, methods such as waxing, threading, and laser hair removal all involve removing hair from the root. Waxing removes a layer of hair with a sticky substance that pulls the hair out from the follicle, leading to longer-lasting smoothness. Threading, a technique often used in facial hair removal, involves twisting a thread to trap and pull hair out from the follicle. Laser hair removal utilizes concentrated light to target and damage hair follicles to inhibit future hair growth, offering a more permanent solution over time.

Thus, since shaving merely cuts hair at the skin's surface and does not involve removal from the follicle, it is correctly identified as not being a method of epilation.