Electrolysis Practice Exam

Which of the following describes galvanic hair removal?

1. It uses light technology

2. It employs heat for hair removal

3. It initiates chemical reactions for hair removal

4. It physically pulls the hair out

The correct answer is: It initiates chemical reactions for hair removal

Galvanic hair removal is a method that specifically utilizes a chemical reaction to achieve hair removal. This process involves the use of low-level electric currents that flow through a needle into the hair follicle. The electric current causes a chemical reaction in the tissue of the follicle, typically through the production of lye (sodium hydroxide), which then effectively destroys the follicle and inhibits future hair growth. This contrasts with the options that mention light technology or heat. While those methods are used in other hair removal techniques such as laser or thermolysis, galvanic hair removal distinctly focuses on chemical reactions rather than these physical or thermal processes. Additionally, the option that suggests physically pulling the hair out does not apply to galvanic methods, as they target the follicle chemically rather than mechanically. Thus, the emphasis on chemical reactions defines the nature of galvanic hair removal.