The current used in facial and scalp treatments is measured in what unit?

• A. Milliamperes
• B. Amperes
• C. Volts
• D. Ohms

Answer: (A)

Current used in facial and scalp treatments is measured in milliamperes because these procedures rely on very small, controlled amounts of electrical flow to be safe and comfortable for the skin. An ampere would indicate a much larger amount of current, which isn’t suitable for cosmetic procedures. Voltage and resistance describe other parts of the electrical circuit, but the actual current delivered in these devices is expressed in milliampere (mA). In practice, these devices operate in the milliampere range, not full amperes, ensuring effectiveness while minimizing sensation and risk.