PMU Pigment Removal Techniques 2 — Questions and Answers
Question 1: Which pigment color is most challenging to remove with laser and carries the highest risk of paradoxical darkening?
- Black
- Dark navy blue
- Forest green
- White or flesh-toned (Correct answer)
Correct answer: White or flesh-toned
White and flesh-toned pigments are most challenging because they contain titanium dioxide, which readily oxidizes to a dark gray or black tone when exposed to laser energy.
Question 2: What is the primary practical difference between saline removal and laser removal for PMU?
- Laser removal is always significantly less expensive
- Saline removal falls within many PMU technicians' scope of practice, while laser removal typically requires a licensed laser or medical professional (Correct answer)
- Saline removal uses light energy while laser uses a salt solution
- Laser removal is limited to eyebrows while saline removal works on all PMU areas
Correct answer: Saline removal falls within many PMU technicians' scope of practice, while laser removal typically requires a licensed laser or medical professional
Saline removal can be performed by trained PMU technicians in many jurisdictions, whereas laser removal generally requires a licensed laser technician or medical professional due to its higher risk profile.
Question 3: What does the Fitzpatrick scale help determine when planning PMU removal?
- The exact replacement pigment color needed for a client
- Skin phototype to assess risk of post-treatment hyperpigmentation or hypopigmentation (Correct answer)
- The precise number of removal sessions a client will need
- The cost estimate for a complete removal treatment series
Correct answer: Skin phototype to assess risk of post-treatment hyperpigmentation or hypopigmentation
The Fitzpatrick scale (I–VI) classifies skin phototype and is used to predict the risk of hyperpigmentation or hypopigmentation complications that can result from laser or saline removal procedures.
Question 4: How is glycolic acid used in the context of PMU pigment removal?
- As a topical numbing agent applied before the removal procedure
- As a chemical exfoliant to accelerate cell turnover and lift superficial pigment (Correct answer)
- As a sterilizing agent applied to the skin immediately before removal
- As a fixative to preserve existing pigment color during partial removal
Correct answer: As a chemical exfoliant to accelerate cell turnover and lift superficial pigment
Glycolic acid functions as a chemical exfoliant that accelerates skin cell turnover, helping to fade and lift superficial PMU pigment from the upper layers of the skin over time.
Question 5: After a saline removal session, what is the single most critical aftercare instruction for the client?
- Apply a thick, occlusive moisturizer to the area immediately after treatment
- Keep the area continuously moist with saline solution for 24 hours
- Do not pick, scratch, or disturb the scab that forms during healing (Correct answer)
- Expose the area to natural sunlight daily to stimulate healing
Correct answer: Do not pick, scratch, or disturb the scab that forms during healing
Clients must not disturb the scab after saline removal because the pigment being expelled is contained within the scab — picking it off prematurely reduces effectiveness and significantly increases scarring risk.
Question 6: For non-emergency saline removal, what is the minimum recommended wait time after the original PMU procedure?
- 7 days post-procedure
- 14 days post-procedure
- 30 days or until the skin is fully healed (Correct answer)
- 6 months minimum
Correct answer: 30 days or until the skin is fully healed
For non-emergency saline removal, practitioners should wait until the skin is fully healed from the original PMU — typically a minimum of 30 days — to reduce infection risk and improve removal efficacy.
Question 7: Which of the following is NOT a benefit of saline removal compared to laser removal for PMU?
- Can be performed by trained PMU technicians without medical licensure
- Effective on all pigment colors including white and flesh-toned pigments
- Requires fewer total sessions to achieve complete removal (Correct answer)
- Lower risk of paradoxical darkening on light-toned pigments
Correct answer: Requires fewer total sessions to achieve complete removal
Saline removal typically requires more sessions than laser — not fewer — making this a drawback rather than an advantage when comparing the two methods.
Which pigment color is most challenging to remove with laser and carries the highest risk of paradoxical darkening?