Laser hair removal on darker skin.
What changes, and what doesn't.
Yes — on the correct laser. The 800-nanometre diode used at Mikki's is one of the few systems suitable for Fitzpatrick V and VI skin. IPL devices common in budget salons are not. A patch test is mandatory before treatment. All six skin types are treated here personally by Mikki, in Aldgate.
What "darker skin" means in laser-language.
The Fitzpatrick scale was developed at Harvard in 1975 to classify skin response to UV exposure. The six types describe how skin tans and burns — not race or ethnicity. Type I never tans and always burns; type VI always tans and rarely burns. In laser hair removal, the scale is used to calibrate settings.
For most clinics, "we treat all skin types" is true for I–III, sometimes IV. For V and VI — brown and dark brown skin — the question is whether the clinic owns the right equipment and knows how to use it. Most don't.
The 800nm diode is rated for the full Fitzpatrick scale. Settings change between types; the question isn't whether we can treat you, it's how we'll calibrate.
Why some lasers are unsafe on darker skin.
All laser hair removal works on the same principle: selective photothermolysis. A specific wavelength of light is absorbed by melanin — the pigment in hair — which heats the follicle and disables its ability to regrow.
The problem on darker skin: melanin is also in the epidermis. When the wavelength is short enough — IPL's broad spectrum from 500–800nm, or the Alexandrite laser's 755nm — the device delivers heat to the skin's surface as well as the follicle. On Fitzpatrick I–III this is manageable. On V–VI it causes burns, blisters, and long-lasting pigmentation damage.
This is why most large UK laser chains either refuse darker skin tones outright, ask clients to "consult before booking" (then turn them away on the day), or worse — treat them anyway with unsuitable equipment, causing harm.
The fix is not a different operator. The fix is a different wavelength.
What the 800nm diode does differently.
Three things separate the 800nm diode from the alternatives:
1. Wavelength depth. 800nm is long enough that the light bypasses most of the surface melanin and reaches the hair follicle deeper in the dermis. Less surface absorption means less surface heating means less risk of burns and pigmentation.
2. Contact cooling. The Venus Velocity head cools the skin to around 4°C at the point of contact, before, during, and after every pulse. This actively protects the epidermis. IPL devices typically use air-cooling or gel only.
3. Calibrated fluence. Fluence is the energy density of each pulse. On Fitzpatrick V–VI we start conservative — lower energy, slower passes — and titrate upward only if the patch test and first session show clean recovery. The wavelength is suitable; the settings make it safe.
The 800nm diode handpiece. Real-time contact cooling at the sapphire tip. More on the technology page →
What good practice looks like.
- Free consultation
- 30 minutes. Skin-type assessment, medical history, photographs of the area, settings discussion. No commitment to book.
- Patch test — mandatory
- A small test patch 2–4 weeks before the first full session. We watch for any pigmentation reaction before the real treatment begins. Free with consultation.
- Conservative starting fluence
- Lower energy density on the first session, even for an experienced laser client. Settings ratchet up across sessions only if response is clean.
- Spacing
- 5–8 weeks between sessions for V–VI — longer than the 4-week minimum on lighter skin. Gives pigmentation time to fully settle.
- Sun exposure rules
- No active tan in the 4 weeks before a session. No sunbed use, ever, during a course. SPF 50 daily on treated areas for at least 4 weeks after each session. Non-negotiable.
- One operator
- The same clinician sees you across the whole course. Mikki personally performs every laser session at this clinic. Continuity matters for setting calibration.
Red flags. What bad clinics get wrong.
If a clinic does any of the following, take it as a signal that they may not be set up for safe Fitzpatrick V–VI treatment.
They won't tell you the wavelength of their laser.
"Our advanced laser system" is not an answer. Ask for the wavelength in nanometres. If they don't know or won't say — walk out. The wavelength determines whether the device is safe on your skin.
They skip the patch test.
"You'll be fine, let's just start the session." A patch test on V–VI is not optional. Any clinic willing to forgo it for revenue is willing to take a risk with your skin.
The consultation is a sales pitch.
If the conversation pivots quickly to a £1,500 package before they've assessed your skin, the priority is closing. The consultation should be diagnostic, not transactional.
You'll see "a member of the team."
Rotating operators across sessions means settings get re-guessed every visit. On darker skin, continuity in calibration is what keeps the course safe and effective.
Post-inflammatory hyperpigmentation.
Post-inflammatory hyperpigmentation — PIH — is darkening of the skin in the days or weeks following any treatment that irritates the melanocytes. On Fitzpatrick V–VI it is the principal risk of poorly-calibrated laser, and the principal reason some clinics refuse to treat darker skin.
PIH is not the same as scarring. It is the skin overproducing pigment in response to inflammation. Most cases fade over months. Some persist for a year or more. A few become permanent. Prevention is always preferable to treatment.
How we prevent it here, in protocol order:
- Patch test 2–4 weeks before treatment, on the area to be treated (manufacturer minimum: 48 hours for V–VI; we extend to 2–4 weeks because delayed PIH can develop later)
- Conservative initial fluence settings on Fitzpatrick V–VI — typically 4 J/cm² on the large light guide, versus 6–8 J/cm² for lighter skin — titrate up only if response is clean
- Longer pulse durations: 100–170 ms on V–VI, broken into 5 sub-pulses, versus shorter pulses for lighter skin. Longer pulses give the cooling tip more time to protect the epidermis
- Single pass per session on V–VI (not two as we'd use on Fitzpatrick I–IV) — darker skin retains heat longer, so we let it dissipate
- Longer between-session spacing (5–8 weeks for V–VI vs 4–6 for lighter skin)
- No active tan before, during, or 4 weeks after any session
- Daily SPF 50 minimum on treated areas for the full course duration
- Topical antioxidant recommendation post-session (vitamin C, niacinamide)
If PIH does appear despite precautions, treatment pauses immediately. Settings are reduced for the next session, spacing is extended, and topical depigmenting recommendations follow. No clinic that says "this never happens to us" is being honest with you.
Eight to ten sessions. Fewer if you're lucky, more if you have PCOS.
- Typical course length
- 8–10 sessions for body areas on Fitzpatrick V–VI. 6–8 on Fitzpatrick IV. Compared to 6–8 sessions for I–III, the additional sessions reflect conservative starting settings, not the laser's effectiveness on darker hair.
- Spacing between sessions
- 5–8 weeks. Slightly longer than for lighter skin. Aligned to the hair-growth cycle, with extra buffer for pigmentation to fully settle.
- What you'll see by session 4
- Patchy reduction begins around session 3–4. The remaining hair grows back finer and lighter. Reduction is typically 40–60% by mid-course, 75–85% by completion.
- If you have PCOS or hormonal hair growth
- Add 2–4 sessions to the standard course count, then plan for annual maintenance. The laser disrupts existing follicles effectively; hormones keep producing new ones. Read the PCOS treatment page for the full protocol.
- What "complete" looks like
- Permanent hair reduction, not removal. Most clients keep ~15% of original density indefinitely. The remaining hair is finer, sparser, and slower to grow back. Maintenance sessions every 12–18 months are common.
- What it costs
- Same per-session price as Fitzpatrick I–IV — the work isn't more expensive on darker skin, just more sessions across the course. See the full price list or the laser landing page.
If this applied to you, so might these.
Laser hair removal for PCOS.
The conversion engine. Why PCOS-related hair growth requires a longer course, annual maintenance, and what the realistic reduction figures look like.
Read → TechnologyThe Venus Velocity diode, in detail.
The handpiece, the cooling tip, the fluence settings, the regulatory clearances. The technical detail without the marketing.
Read → ResultsReal client photographs.
Real clients, real completed courses — photographed at our chair with consent. No stock images, no library before-and-afters.
View →Common questions, direct answers.
Is laser hair removal safe on Fitzpatrick VI skin?
Why won't IPL work on my darker skin?
What is post-inflammatory hyperpigmentation and how is it prevented?
How many sessions will I need on darker skin?
I have keloid-prone skin. Can I still have laser?
What questions should I ask any clinic before booking laser on darker skin?
A skin-type check, a patch test, no obligation.
Thirty minutes. We'll assess your skin and confirm settings before any real treatment. You'll leave with answers, with or without a booking.
Book a consult →