Electrolysis Practice Exam

When using galvanic current, which pole should electrologists use for hair removal?

1. Anode pole

2. Cathode pole

3. Ground pole

4. Negative pole

The correct answer is: Cathode pole

In the context of electrolysis for hair removal, the cathode pole is utilized. This choice is based on the fundamental principles of how electrolysis works. The process involves using direct current in which the negatively charged current (cathode) produces a chemical reaction that effectively destroys the hair follicle by generating high-temperature heat at the site. When the cathode is used, it attracts positively charged ions, facilitating the creation of hydroxide ions. These ions are responsible for damaging the follicle and inhibiting hair regrowth. Additionally, many machines used for hair removal in electrology are designed to deliver the current through the cathode pole. This ensures a more efficient treatment process, as the negative pole not only aids in the breakdown of hair follicles but also minimizes discomfort for clients. Other options like the anode pole are associated with positively charged reactions that aren't suitable for this purpose. The ground pole serves as a safety feature rather than a functional aspect of the hair removal process. Therefore, the use of the cathode pole is essential for effective and safe hair removal via electrolysis.