NIC Esthetician Written ExamTreatment ProceduresMedium

A client with Fitzpatrick skin type II presents with concerns about fine lines and a dull complexion. She is interested in a non-invasive treatment that can improve skin texture and promote collagen production. Which electrical modality would be most suitable for this client?

  1. AMicrodermabrasion
  2. BGalvanic current (iontophoresis)
  3. CGalvanic current (desincrustation)
  4. DHigh-frequency current
Show answer & explanation

Correct answer: A. Microdermabrasion

Microdermabrasion is a mechanical exfoliation technique that removes dead skin cells, stimulating cell turnover and promoting collagen production, which effectively addresses fine lines and dullness.

Why the other options are wrong

  • B. Iontophoresis uses galvanic current to penetrate products, not to mechanically exfoliate or directly stimulate collagen for fine lines.
  • C. Desincrustation uses galvanic current to soften sebum and is primarily for oily/congested skin, not fine lines.
  • D. High-frequency current is used for antiseptic effects, oxygenation, and calming, not direct collagen stimulation or exfoliation for fine lines.

Microdermabrasion Benefits

A mechanical exfoliation technique that uses a device to spray fine crystals or use a diamond tip to abrade the skin's surface, removing dead skin cells and stimulating cellular renewal.

  • Improves skin texture and tone
  • Reduces appearance of fine lines and wrinkles
  • Stimulates collagen production
  • Effective for hyperpigmentation and mild acne scars

Memory trick: Micro-Magic for new skin.

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