Condition · Fitzpatrick IV to VI · Battersea SW11
Ingrown hairs and razor bumps in Skin of Colour, in London.
Healthy skin for every tone. Razor bumps (pseudofolliculitis barbae) are not a hygiene problem or a shaving mistake. They are an inflammatory reaction to curved hairs re-entering the skin, and they are reported in roughly 45 to 83 percent of Black men who shave. On Fitzpatrick IV to VI skin, each bump can also leave a dark mark or a raised scar, so the problem often outlasts the hair. There is a clear ladder that works.
A clinician-led assessment with Arman Zaki, GMC-registered Physician Associate (Ref A8131967). We identify what is actually happening in your skin, fix the cause, and treat the marks it leaves. We do not sell you a single product and hope.
The mechanism
The two ways a shaved hair turns into a bump.
Understanding this is the whole game, because it explains why razor bumps come back and why the fixes that work are the ones that stop the hair re-entering the skin. A shaved hair with a sharp tip goes wrong in one of two ways.
Extrafollicular. The hair curls back in.
The hair exits its follicle normally, then, because it is tightly curled, curves round and pierces the skin surface a short distance away. Tight curl geometry is the driver, which is why this is so much more common in coarse, curly hair.
Transfollicular. The hair never leaves.
A very close shave leaves a sharp tip below the skin surface. As the hair grows, it pierces the wall of its own follicle from the inside and never emerges. Close shaving makes this route more likely, which is why a closer shave can mean more bumps, not fewer.
Either way, the body treats the buried hair as a foreign object and mounts an inflammatory response around it. That is the red or dark papule, the pustule, and, if it persists, the firm lump people call an ingrown hair cyst. Source: DermNet, Pseudofolliculitis barbae; NHS, Ingrown hairs.
Why it hits Fitzpatrick IV to VI hardest
Curved follicles, and a longer shadow.
The strongest risk factor for pseudofolliculitis barbae is tightly curled follicle geometry, which is most common in people of African ancestry. That is why the condition is reported in roughly 45 to 83 percent of Black men who shave, and why it is common on the bikini line, underarms, and legs in women who shave or wax. It is a structural feature of the hair, not a failure of technique.
Two things then make it more consequential in darker skin. First, the same curled hair re-enters the skin more readily. Second, Fitzpatrick IV to VI skin has a higher density of active melanocytes, so every inflamed bump can leave a lasting dark mark, and, in some people, a raised keloidal scar. The bump lasts days. The mark it leaves can last many months. Managing the pigmentation is therefore part of the treatment, not an afterthought. Source: DermNet, Pseudofolliculitis barbae.
If dark marks from old bumps are your main concern, see our page on post-inflammatory hyperpigmentation in Skin of Colour, which is the most common consequence of long-standing razor bumps.
The Melatone approach
Fix the cause first. Then the marks.
There is no single product that resolves recurrent razor bumps. The approach that works is a ladder: get the diagnosis right, change what the hair is doing, calm the inflammation, and, for stubborn recurrence, reduce the hair itself. Each step is only added when it is the right one for your skin.
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Get an accurate diagnosis.
Not every bump in the beard area is pseudofolliculitis barbae. Bacterial folliculitis, acne keloidalis nuchae at the back of the scalp, ordinary acne, and, occasionally, a fungal infection can all look similar and are treated differently. Getting this right at the start prevents months of the wrong treatment. Firm or growing lumps are examined in person.
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Change, or pause, the hair removal.
The fastest way to settle active bumps is to stop the shaving that is causing them, and most cases quieten within 4 to 6 weeks when the trapped hairs are allowed to release. Where stopping is not realistic, the evidence-based technique changes are: a single-blade or well-maintained razor, shaving in the direction of hair growth, not stretching the skin taut, and leaving a short stubble rather than a close shave. We do not tell you to simply stop shaving and leave it there.
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Calm the inflammation with topicals.
Topical agents supported for pseudofolliculitis barbae include benzoyl peroxide, a topical retinoid to reduce follicular plugging, azelaic acid, and gentle glycolic acid exfoliation to help hairs release. Where bumps are secondarily infected, a short course of a topical or oral antimicrobial may be appropriate. These are matched to your skin, not applied as a blanket routine, and never layered so aggressively that they irritate darker skin into more pigmentation.
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For recurrence, reduce the hair. Long-pulsed 1064 nm Nd:YAG.
When bumps keep returning despite technique changes and topicals, the most effective long-term intervention is laser hair reduction: fewer and finer hairs means fewer hairs that can grow back into the skin. In Fitzpatrick IV to VI skin the wavelength the evidence supports is the long-pulsed 1064 nm Nd:YAG, because it reaches the follicle with minimal absorption by epidermal melanin, making it the safest option for darker skin tones. A randomised study on skin types V and VI found statistically significant reductions in papules, pustules, and hair after treatment, and a later comparison found the long-pulsed Nd:YAG outperformed chemical peeling for this indication. This is a course, not a single session. At Melatone it is assessed by Arman Zaki and, where suitable, delivered by Catia Zaki, our VTCT Level 4 Laser and IPL lead, after a patch test. Sources: Weaver SM 3rd, Sagaral EC (2003), Dermatol Surg, DOI 10.1111/j.1524-4725.2003.29387.x; Amer A et al. (2021), Dermatol Ther, DOI 10.1111/dth.14859. Results may vary.
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Treat the dark marks left behind.
Once the bumps are controlled, the remaining concern for most people with darker skin is the post-inflammatory hyperpigmentation. This is managed with daily mineral SPF, topical pigment regulators, and, where appropriate, conservative in-clinic treatment, following our pigmentation protocol for Skin of Colour. We do not use skin-lightening or bleaching products.
What we do not do
For razor bumps in Fitzpatrick V to VI, we avoid these.
Several common shortcuts either do not work or actively risk worsening pigmentation and scarring in darker skin. These are not part of our approach:
- Digging out ingrown hairs with a needle or tweezers. It adds trauma and, on darker skin, more pigmentation.
- Aggressive laser or IPL settings without a patch test and a Fitzpatrick assessment. On Fitzpatrick V to VI this is where burns and pigment change happen.
- Skin-lightening or bleaching creams for the dark marks. We do not stock, prescribe, or signpost to these.
- Medium-depth or deep chemical peels on Fitzpatrick VI skin.
- Telling you to simply stop shaving and offering nothing else.
- Treating a firm, growing, or painful lump as a routine bump without examining it in person.
Where laser hair reduction is the right step, it is the 1064 nm wavelength, after a patch test, delivered as a planned course. The default at Melatone is conservative and evidence-led, not aggressive.
The consultation
£30, deducted from your first treatment.
One
Assessment
Fitzpatrick typing, hair-type assessment, a look at the affected areas, your shaving or waxing routine, and exclusion of look-alike conditions. Photographic baseline at consistent lighting with your consent.
Two
Personalised plan
A written, sequenced plan: technique change first, topicals second, and a laser course only where recurrence justifies it. An honest read of what each step can and cannot do.
Three
Review at 6 to 8 weeks
Photographic comparison, plan adjustment, and a decision on whether to escalate to laser or hold. Any resulting dark marks are addressed alongside.
Questions, answered honestly
Before you book.
What causes razor bumps and ingrown hairs?
Razor bumps (pseudofolliculitis barbae) are a foreign-body inflammatory reaction to a shaved hair that grows back into the skin. There are two routes. In the extrafollicular route, a tightly curved hair exits the follicle, curls round, and re-enters the skin surface. In the transfollicular route, a hair cut below the skin surface pierces the wall of its own follicle as it grows. Both are far more likely when the hair is tightly curled, because the curl drives the sharp shaved tip back toward the skin. The body treats the buried hair as a foreign object and forms a red or dark papule or pustule around it. Source: DermNet, Pseudofolliculitis barbae.
Why are razor bumps worse on Black and brown skin?
The single strongest risk factor is tightly curled follicle geometry, which is most common in people of African ancestry, so pseudofolliculitis barbae is reported in roughly 45 to 83 percent of Black men who shave. Two things then make it worse in Fitzpatrick IV to VI skin. First, the same curled hair re-enters the skin more easily. Second, the higher density of active melanocytes means each inflamed bump can leave a lasting dark mark (post-inflammatory hyperpigmentation) and, in some people, a raised keloidal scar. So the visible problem often outlasts the bump itself. Source: DermNet, Pseudofolliculitis barbae.
How do I get rid of razor bumps and prevent them coming back?
In the short term, most razor bumps settle within 4 to 6 weeks if you stop the shaving that is causing them and let the trapped hairs release. To prevent recurrence without stopping shaving, the evidence-based measures are: use a single-blade or a well-maintained razor, shave in the direction the hair grows, do not stretch the skin taut, and leave a very short stubble rather than a close shave. Topical agents that help include benzoyl peroxide, a topical retinoid, azelaic acid, and gentle glycolic acid exfoliation. If the bumps keep returning despite this, laser hair reduction is the most effective long-term option. At Melatone in Battersea, Arman Zaki assesses your skin and hair type first, because the right plan depends on both. Results may vary.
What is the most effective long-term treatment for recurrent ingrown hairs and razor bumps?
For recurrent pseudofolliculitis barbae, laser hair reduction is the most effective long-term intervention, because fewer, finer hairs means fewer hairs that can grow back into the skin. In Fitzpatrick IV to VI skin the wavelength the evidence supports is the long-pulsed 1064 nm Nd:YAG, which targets the follicle with minimal absorption by epidermal melanin, so it is the safest choice for darker skin tones. A randomised study on skin types V and VI found statistically significant reductions in papules, pustules, and hair after treatment. A course, not a single session, is needed. At Melatone this is assessed by Arman Zaki and, where suitable, delivered by Catia Zaki, our VTCT Level 4 laser lead, after a patch test. Sources: Weaver SM 3rd, Sagaral EC (2003), Dermatol Surg, DOI 10.1111/j.1524-4725.2003.29387.x; Amer A et al. (2021), Dermatol Ther, DOI 10.1111/dth.14859. Results may vary.
Can women get ingrown hairs on the bikini line or pubic area?
Yes. Ingrown hairs and razor bumps are common in any shaved or waxed area, and in women they most often appear on the bikini line, the pubic area, the underarms, and the legs. The mechanism is the same as on the face: a curved hair re-enters the skin and triggers inflammation, which on darker skin can leave a dark mark. The same ladder applies, from hair-removal technique changes and topicals through to laser hair reduction for recurrent cases. Firm, tender, or growing lumps in the groin should always be assessed in person to rule out other causes.
When is an ingrown hair a cyst, and when should I worry?
An ingrown hair usually starts as a small papule or pustule. If inflammation persists, it can enlarge into a firm, deeper lump that people often describe as an ingrown hair cyst or a hard lump under the skin. Signs that warrant an in-person assessment rather than home treatment include a lump that is rapidly growing, increasingly painful, hot, spreading redness, discharging pus, or associated with fever, all of which suggest secondary infection or abscess formation. You should also have any lump checked if it is not clearly linked to shaving, does not settle, or keeps returning in the same spot. Do not dig for the hair with a needle, as this adds trauma and, on darker skin, more pigmentation. Book an assessment instead.
Who treats ingrown hairs and razor bumps at Melatone?
Arman Zaki, Founder and Lead Clinician, GMC-registered Physician Associate (Ref A8131967). He has a declared special interest in Skin of Colour across Fitzpatrick I to VI and leads the assessment, the diagnosis, and the topical and prevention plan. Where laser hair reduction is the right step, it is delivered by Catia Zaki, our VTCT Level 4 Laser and IPL lead, after a patch test. Melatone Skin Clinic is at Unit 13A, Battersea Business Centre, 99-109 Lavender Hill, London SW11 5QL. A £30 consultation is bookable via Treatwell or WhatsApp on +44 7586 817215.
£30 personalised consultation