In electrolysis, using an incorrect pole during epilation may cause what?

• A. Tattooing
• B. Burns
• C. Infection
• D. Nerve damage

Answer: (A)

Polarity in galvanic epilation drives which chemical environment is created inside the hair follicle. When the polarity is correct, the follicle experiences an alkaline reaction (sodium hydroxide) that helps destroy the hair. If the electrode leads are reversed, an acidic environment forms at the follicle instead, which can damage tissue and pigment-containing cells in a way that leaves a permanent discoloration on the skin—often described as a tattoo-like mark. This lasting pigment change is the point of concern with an incorrect pole, because it reflects irreversible skin staining from the chemical reaction. While other issues like burns or infection can occur with improper technique, a reversed polarity is specifically associated with this tattoo-like discoloration path.