There are three recognized
modalities (methods) of electrolysis:
GALVANIC (direct current) electrolysis - the hair is destroyed by chemical action
THERMOLYSIS (high frequency) electrolysis - the hair root is destroyed by heat production.
BLEND electrolysis - a combination of the above two modalities where the hair root is destroyed by both heat and chemical action at the same time.
All three modalities are safe and effective. As a professional I can choose the modality which is best for you.