What is the primary function of a needle in electrology?

The primary function of a needle in electrology is to deliver current directly to the hair follicle. In the process of electrolysis, a fine needle or probe is inserted into individual hair follicles. Once the needle is in place, electrical current is applied, which effectively destroys the hair-producing cells. This method is key because it targets the specific follicle, ensuring that hair removal is precise and effective.

Manual hair removal, assessment of skin conditions, and the application of topical anesthetics, while important components of skincare and hair removal processes in some contexts, do not pertain to the specific role of the needle in electrology. The needle's direct interaction with the follicle through electrical current is what makes it integral to achieving permanent hair removal.