A permanent means of hair removal is?

Electrolysis is recognized as a permanent method of hair removal because it involves the use of electrical currents to destroy the hair follicle. This process targets the root of the hair, effectively preventing future hair growth. Unlike other methods, electrolysis can be used on all hair types and colors, making it a versatile option for individuals seeking a long-term solution to unwanted hair.

In contrast, methods like waxing and threading are temporary forms of hair removal. They remove hair at the surface level but do not affect the follicle's ability to regrow hair. Shaving, similarly, only cuts hair at the skin's surface and does not provide a permanent solution. Therefore, electrolysis stands out as the only method listed that achieves permanent hair removal.