Treating Skin of Colour: Injectables and Devices Across Fitzpatrick Types
Europe's aesthetic patient population no longer looks like the one most training courses were designed around. Practitioners in Lithuania, Poland, Germany and Spain now regularly treat Fitzpatrick IV, V and VI skin, and the techniques that are safe in type II are not automatically safe in type V. The difference is not cosmetic sensitivity. It is melanin behaving as a chromophore, and a dermis that heals differently.
The mechanism that drives everything else
Melanin absorbs light across the wavelengths most aesthetic devices use, and it responds to inflammation by producing more of itself. Those two facts generate almost every complication specific to darker skin.
Energy intended for a target — a vessel, a hair follicle, water in the dermis — is partly absorbed by epidermal melanin along the way. That is heat in the wrong layer, and it produces burns, blistering and, most commonly, post-inflammatory hyperpigmentation. PIH is not a scar and usually resolves, but "usually" can mean six to twelve months of a patient looking worse than before they paid you.
The same reflex applies to any inflammation, not just light: an aggressive peel, an over-enthusiastic microneedling pass, even repeated needle punctures in a patient prone to pigmenting.
Assessment: Fitzpatrick is a starting point, not the answer
Fitzpatrick classifies sun response, not ethnicity, and it performs poorly at the ends of its range. Two patients who both call themselves type V may pigment quite differently. More useful questions than the scale itself:
- Has previous inflammation — acne, an insect bite, a scratch — left a dark mark that persisted for months? That is a direct read on PIH tendency.
- Is there any history of keloid or hypertrophic scarring, particularly on the chest, shoulders or jawline?
- Is there existing melasma? Melasma changes the plan entirely and is easily worsened by heat.
- What is the recent sun exposure, and is a tan present now?
Photograph in consistent lighting before anything. Pigment changes are gradual and contested; documentation settles arguments that memory cannot.
Devices: wavelength, fluence, pulse duration, cooling
The general principle is that longer wavelengths penetrate deeper and are absorbed less by epidermal melanin, which makes them comparatively safer in darker skin. Long-pulsed Nd:YAG devices have become the workhorse for this reason, while shorter-wavelength systems — particularly intense pulsed light, and hair-removal settings tuned for pale skin — carry substantially more risk. Specific parameters belong to the device you own and its manufacturer's guidance for each skin type, not to a general article [2].
Beyond wavelength, four habits matter:
- Test spot, always. In an inconspicuous area, at the intended settings, then wait — days, not minutes. This single step prevents more harm in skin of colour than any other.
- Understand why conservative parameters matter here. Energy delivered more slowly, and less of it, gives the epidermis time to shed heat before it is damaged. What conservative means numerically is a property of your device and your patient, and comes from the manufacturer's per-phototype guidance and your training.
- Cool aggressively and continuously, before, during and after the pass.
- Fewer passes, longer intervals. The temptation to finish in one session is where PIH is created.
Ablative resurfacing and deep peels are not absolutely contraindicated in darker skin, but they belong to practitioners who treat this population routinely — not to someone extending their range on a Saturday.
Peels and microneedling
Superficial chemical peels are generally well tolerated. The risk rises with depth, and medium-depth agents demand caution and experience. Priming the skin for several weeks beforehand, and treating any active melasma first, reduces the chance of a rebound [1].
Microneedling is comparatively forgiving because it is mechanical rather than thermal, but it is not risk-free: excessive depth, repeated passes over the same area or radiofrequency-assisted devices reintroduce heat and inflammation. Conservative depth and endpoint discipline — light erythema, not pinpoint bleeding everywhere — serve this population better.
Injectables: different ageing, not just different risk
The injectable conversation is less about danger and more about planning. Darker skin typically has a thicker dermis and greater intrinsic photoprotection, so fine rhytids appear later. Volume loss and descent, however, proceed on their own schedule.
The practical consequence is that a treatment plan built around static lines will underserve these patients, while structural support — midface, jawline, temples — often produces a more meaningful result. There are also recognised differences in the typical pattern of midface fat compartment change, which is a reason to assess each face on its architecture rather than applying a template learned on a different population.
Two specific cautions: keloid tendency matters wherever you break skin, particularly around the jawline and chest, and repeated punctures in a patient who pigments readily can leave marks at entry points. Fewer entry points — an argument for cannula work — is a real advantage here [3].
Aftercare is part of the treatment
Photoprotection is not a suggestion for this group; it is what determines whether PIH appears and how long it lasts. Broad-spectrum protection, reapplied, plus visible-light protection where pigmentary conditions are in play. Tinted formulations containing iron oxides are worth recommending specifically, because visible light — not only ultraviolet — drives pigmentation in darker skin.
Set the expectation before treatment, not after: any redness or dark mark may take weeks to settle, and picking, scrubbing or "helping it along" makes it worse.
The professional point
Declining a patient because you are genuinely outside your competence is always the right call. Declining a whole patient population because you never acquired the competence is a different thing, and a gap worth closing — treating skin of colour is basic proficiency in European practice, not a niche specialisation. The starting point is modest: understanding why wavelength matters, testing before treating, planning slower, and having an honest conversation about pigment. Building real competence from there takes the same supervised practice any other region does.