Electrolysis
Electrolysis is a method of hair removal that entails destroying hair follicles and shafts by transmitting chemical or heat to the growth centers of the hairs via a tiny probe. The hair is then removed with a tweezer.
Interestingly, it has been in use for more than 100 years and is the only FDA-approved method of permanent hair removal. Unlike laser hair removal, electrolysis is effective in removing gray and lightly pigmented hairs.
The 2 forms of electrolysis are short-wave diathermy or thermolysis or galvanic electrolysis. The former uses heat alone and is the quicker, less painful of the 2 options. Galvanic mixes heat and chemicals and is slower and more painful and isn't used often.
Electrolysis can be used on most areas of the body and is a very safe procedure. The most likely adverse effects are irritation and swelling of the treated area followed by minor scabbing lasting a few days.
You will typically require treatments weekly to every other week for as long as a year and in some cases, for up to 2 years.