IPL for Melasma on Recently Tanned Fitzpatrick V Skin
A 34-year-old woman of Fitzpatrick type V comes in two weeks after a Cancun vacation, still visibly tanned, asking for IPL to "erase" symmetric brown patches on both cheeks that have been present for two years. She is on doxycycline for acne and has been using a retinoid nightly. She wants the first treatment today because she has a college reunion in 10 days, and she says her coworker, who is much lighter-skinned, had "amazing" results with the same device. She has never had a test spot and has no history of blistering or scarring from prior treatments. She is otherwise healthy and wants to book a package of six today.
1. Do you treat today with IPL? Walk through each factor that drives your decision.
Read the worked answer
No. Decline IPL today and explain why.
Factor by factor:
- Recent UV exposure and visible tan: IPL targets melanin. A tan means competing epidermal pigment, so the light energy is absorbed where you do not want it -- risk of burns, blistering, and post-inflammatory hyperpigmentation. Standard practice is to wait until the tan has fully faded, typically 3-4 weeks of strict photoprotection.
- Fitzpatrick V: higher constitutive melanin means a narrower safety margin and greater PIH risk from any thermal injury; device settings would need to be conservative and based on a test spot, not on a coworker's protocol.
- Melasma: melasma is heat- and inflammation-sensitive. IPL and other light/heat devices can worsen melasma in a substantial number of clients, and recurrence is common. The diagnosis needs medical management, not automatic light therapy.
- Doxycycline: a known photosensitizing medication, adding to the risk profile; the treating provider should be aware.
- Retinoid use: increases photosensitivity and barrier fragility; typically discontinued for a period before light-based treatments per protocol.
- Timeline: 10 days is not enough time to manage a complication, and PIH can take months to fade.
Also: no test spot, no documented skin assessment, and pressuring a six-session package before any assessment is a red flag for informed consent.
2. What do you tell her, and how do you structure a safe path forward?
Read the worked answer
Be direct that IPL is the wrong tool right now, and give her a plan she can follow.
What to say:
- Name the reason, not just the refusal: tanned skin plus type V plus melasma plus a photosensitizing antibiotic means today's IPL could leave her with darker patches that take months to fade -- the opposite of her goal.
- Do not promise that IPL will fix melasma; explain it is often a maintenance or adjunct tool and that melasma is managed long-term.
- Do not sell a six-treatment package before a test spot and a treatment plan exist.
Path forward:
- Strict photoprotection: broad-spectrum SPF 30+ reapplied, hats, sun avoidance; wait until the tan has faded.
- Refer to a physician/dermatologist for melasma evaluation and prescription options (for example triple-combination cream, tranexamic acid); coordinate with her prescriber about doxycycline and the retinoid.
- Once cleared and untanned, perform a test spot in a discreet area, assess response at the protocol interval, then consider conservative settings or a gentler alternative (superficial peels, gentle facials).
- Reconfirm the reunion plan: offer a soothing facial and home-care guidance instead of a light-based treatment.
- Document the assessment, the reasoning, the referral, and her agreement.
3. She pushes back hard: "My coworker had it, why won't you?" How do you handle the consent conversation?
Read the worked answer
Reframe around her variables, not her coworker's, and put it in writing.
- Explain that Fitzpatrick type, current tan, medication list, and diagnosis determine settings and suitability -- not the device name. Her coworker's skin type and health history are different inputs.
- Use plain risk language: "There is a meaningful chance this makes the brown patches darker for months. I am not willing to take that risk on your skin today."
- Offer the alternative and the timeline, so the conversation ends with a plan rather than a dead end.
- If she wants to proceed elsewhere, that is her right; do not disparage the other provider, but do document your recommendation and her decision.
- Document: skin type, tan status, medications, lesion description, test-spot recommendation, risks explained, referral made, package declined, and her signature on the informed consent acknowledging the discussion.
A defensible record is the difference between a professional judgment call and an undocumented refusal.