Electrolysis

Electrolysis is most often discussed for small, well-defined areas—eyebrow shaping, the upper lip, chin and jawline, hairline edges, underarms, the bikini line, or scattered stubborn hairs. It is also a common follow-up for hairs that laser cannot target: laser and IPL rely on pigment in the hair to absorb light energy across a broad area, while electrolysis works follicle by follicle regardless of color, so white, gray, blond, red, and very fine hairs remain treatable.

Its promise and its limitation are the same thing: follicles are destroyed one at a time. A follicle that has been fully destroyed does not regrow hair—which is where the word “permanent” comes from—though an individual follicle sometimes needs more than one treatment. Clearing even a small area therefore takes many sessions, and large areas such as full legs or the back are usually impractical. It also does not treat the cause of hair growth: if a hormonal condition keeps activating new follicles, new hairs can appear in untreated ones.