Utah Esthetics Written State Practice Exam

Which machine is known for producing an electrochemical effect?

1. Microdermabrasion machine

2. Galvanic

3. Ultrasound

4. Radiofrequency

The correct answer is: Galvanic

The galvanic machine is recognized for its ability to produce an electrochemical effect. This is achieved through the use of direct current (DC) that facilitates chemical reactions in the skin. The galvanic process typically involves the use of negatively and positively charged electrodes, which interact with the skin layers to stimulate circulation and enhance product penetration. This effect can lead to improved hydration, increased blood flow, and the potential removal of impurities through iontophoresis. In contrast, the other devices listed have different primary functions and mechanisms. A microdermabrasion machine focuses on mechanical exfoliation through the abrasion of the skin's surface, effectively removing dead skin cells without inducing a chemical reaction. Ultrasound therapy employs sound waves to create vibrations that can help in penetrating products into the skin or stimulating collagen production, rather than generating an electrochemical effect. Radiofrequency technology uses electromagnetic waves to heat the tissue and promote collagen production, which is also distinct from the electrochemical process facilitated by galvanic currents.