California Barber Written ExamSkin Care ServicesHard
During a facial, a barber is performing a desincrustation treatment using galvanic current. What is the primary purpose of this procedure?
- ATo deeply hydrate dry skin.
- BTo soften and emulsify sebum and blackheads.
- CTo stimulate blood circulation and muscle contraction.
- DTo firm and tone mature skin.
Show answer & explanationAnswer & explanation
Correct answer: B. To soften and emulsify sebum and blackheads.
Desincrustation uses a negative galvanic current to create a chemical reaction (saponification) that softens and emulsifies hardened sebum and blackheads, making them easier to extract.
Why the other options are wrong
- A. Deep hydration is typically achieved with iontophoresis (positive galvanic current) or hydrating masks, not desincrustation.
- C. Stimulating blood circulation and muscle contraction is more characteristic of high-frequency or microcurrent, not desincrustation's primary goal.
- D. Firming and toning is often associated with microcurrent or specific massage techniques, not desincrustation.
Desincrustation
A deep cleansing treatment using negative galvanic current to create a chemical reaction that softens and emulsifies sebum and blackheads in the pores.
- Primarily used for oily, congested, or acne-prone skin.
- Prepares the skin for easier extractions.
- Involves a process called saponification, turning sebum into soap.
Memory trick: Desincrustation's negative power, sebum's demise in that hour.