New Jersey State Board Esthetics Practice Exam

Which of the following is an example of galvanic current?

1. Electrolysis

2. Iontophoresis

3. Microdermabrasion

4. Infrared therapy

The correct answer is: Iontophoresis

Galvanic current is a type of direct current that produces a chemical effect when it passes through tissues and fluids in the body. This is widely utilized in various skincare treatments. Ionophoresis serves as an excellent example of galvanic current because it involves the use of direct electric current to drive ions of an active ingredient into the skin. This technique enhances product penetration, allowing for more effective treatment outcomes. In contrast, the other options, while relevant in the context of skincare treatments, do not primarily involve galvanic current. Electrolysis might utilize electrical current but is more focused on hair removal than the chemical effects traditionally associated with galvanic applications. Microdermabrasion is a mechanical exfoliation technique that does not involve electrical currents, and infrared therapy uses light rather than electrical currents to promote healing and regeneration. Therefore, iontophoresis stands out as the application that directly employs the principles of galvanic current.