That poster is wrong. With correctly performed electrolysis, it is permanent.
for reduction on Underarms, Bikini, Full Legs & 3/4 Arms. Skin type IV
Electrolysis - Further details in: My sister's electrolysis diary
[27hrs of Blend, April 2008-Dec 2010 in UK, for coarse hair on lower sideburns, coarse chin hair, completed upper lip, shaped eyebrows]
[Sept 2011 to Nov 2013, once yearly sessions with Josefa. Completed reduction of facial/neck fuzz in approx 27 hrs TTT]