Melasma on the Face in Indian Skin: What Is Melasma, Its Causes, What Research Says About Treatment

Melasma on the Face in Indian Skin: What Is Melasma, Its Causes, What Research Says About Treatment - Boldpurity Skincare

Start Here — The Short Version

Melasma is chronic, symmetrical facial pigmentation driven by sun exposure, hormones and genetics — most often affecting women, and common in Fitzpatrick III–V skin.

The most useful thing most melasma advice omits: visible light also drives it — ordinary daylight, screens, indoor lighting. And visible light is not blocked by conventional sunscreen, nor measured by SPF or PA ratings. Iron oxides, the pigments in tinted sunscreen, are what block it.

That is why melasma so often persists in people who are diligent with SPF. A trial found tinted sunscreen outperformed non-tinted for preventing relapse, with the same UV filters.


TopicMelasma · pigmentation · Indian skin
Key ideaVisible light, and why it recurs
Reviewed byBoldpurity Science Team · Aug 2026

This article is educational and is not medical advice, diagnosis or a treatment recommendation. Melasma is a medical condition — consult a qualified dermatologist for assessment and management, particularly if pregnant, breastfeeding or trying to conceive.

★ Key Facts

  • Visible light induces pigmentation in Fitzpatrick IV–VI and is not covered by SPF or PA ratings.
  • Iron oxides block visible light — which is what makes tinted sunscreen meaningfully different here.
  • Melasma lesional skin shows basement membrane damage, letting melanin reach the dermis where topicals cannot follow.
  • Lesions also show increased vascularity — melasma is not purely a melanocyte problem.
  • That combination explains recurrence, which is otherwise just asserted.
  • Around 90% of cases are reported in women, and family history is common.
  • Heat is an independent trigger from UV — relevant in Indian summers and near cooking.
  • Aggressive treatment can worsen it in deeper skin tones. This is a dermatologist's condition.

Melasma is one of the most frustrating conditions in dermatology, partly because the standard advice is incomplete in a specific and consequential way.

The Basics

What Melasma Is

Melasma is acquired hyperpigmentation appearing as symmetrical brown to greyish-brown patches, most often on the face. Symmetry is the defining feature — pigmentation on one cheek but not the other is usually something else.

All melasma is hyperpigmentation; not all hyperpigmentation is melasma. Sun spots are discrete and asymmetric. Post-inflammatory pigmentation follows the shape of whatever inflamed the skin. Melasma is patterned and symmetrical, typically centrofacial (forehead, cheeks, nose, upper lip), malar (cheekbones), or mandibular (jawline).

Depth matters for what can be done about it. Epidermal pigment sits in the upper layers and responds relatively better to topicals. Dermal pigment sits deeper, often looks greyish, and is considerably more stubborn. Mixed is the most common presentation in deeper skin tones — and the next two sections explain why that distinction turns out to be central.

The Gap In Standard Advice

The Visible Light Problem

Melasma advice is overwhelmingly about UV — broad-spectrum, PA++++, reapply. All correct, and it leaves out something that matters enormously in deeper skin.

What SPF does not measure

Work by Mahmoud and colleagues showed that visible light induces pigmentation in Fitzpatrick IV–VI skin — and that the pigmentation it produces is darker and longer-lasting than that produced by comparable UVA1 exposure. In lighter skin, visible light produced little effect.

Here is the practical problem. SPF measures UVB. PA ratings measure UVA. Neither measures visible light, and conventional transparent sunscreen filters do not block it. You can apply a high-SPF, high-PA sunscreen perfectly and still receive the visible light exposure driving your pigmentation.

What does block it is iron oxides — the pigments that make a sunscreen tinted. Boukari and colleagues ran a randomised comparison in women with melasma: same UV filters, tinted versus non-tinted. The tinted group had significantly fewer relapses.

This reframes a common and demoralising experience. People with melasma who are genuinely diligent about sunscreen, and see it persist anyway, are frequently not failing at anything — they have been protecting against two of the three relevant wavelength ranges.

It also explains why melasma can hold steady through an Indian winter and why office workers are not exempt. Visible light comes through windows, and indoor lighting and screens contribute — though outdoor daylight remains by far the dominant exposure.

What to look for on a label

Iron oxides in the ingredient list — usually appearing as CI 77491, CI 77492 and CI 77499. A sunscreen with a tint that suits your skin tone is doing something a transparent one cannot, regardless of its SPF.

This is one of the few places where a cosmetically tinted product has a genuine mechanistic advantage rather than a marketing one — and where the shade range available in India for deeper skin tones is a real and legitimate frustration.

Heat is worth naming separately. Infrared and ambient heat are implicated in pigmentation independently of UV, which matters near cooking, during Indian summers, and around any sustained heat exposure. It is not a substitute for sun protection, but it explains flares that do not track with sun exposure alone.

The Mechanism

Why It Comes Back

Melasma is described as chronic and recurrence-prone, usually without explaining why. There is a mechanism, and understanding it changes what expectations are reasonable.

Not just a melanocyte problem

The basement membrane is damaged. The layer separating epidermis from dermis shows disruption in melasma lesional skin. That allows melanin, and sometimes melanocytes themselves, to drop into the dermis — where topical treatments cannot reach it and where clearance is extremely slow.

Lesions are more vascular. Melasma skin shows increased number and size of blood vessels, and that vascular component appears to interact with pigment production rather than sitting passively alongside it.

So melasma is a change in the skin's environment, not only in its pigment cells. Suppressing melanin production addresses one component. The damaged membrane and altered vasculature persist — which is precisely why pigmentation returns when treatment stops.

Two useful consequences follow. First, maintenance is not a failure of the treatment — it is the appropriate response to a condition where the underlying substrate remains altered. Second, dermal pigment genuinely responds less to topicals, so slow progress on greyish-toned melasma reflects depth rather than an inadequate product.

The Context

Why It's Common In Indian Skin

Four factors converge, and the fourth is the one the visible-light section explains.

Factor Why it matters here
Skin type Melasma is most reported in Fitzpatrick III–V, which describes most Indian skin. Melanocytes here respond readily when triggered.
Latitude and climate Year-round high sun angle rather than seasonal — exposure is continuous, not concentrated into summer.
Hormones Around 90% of cases occur in women; pregnancy and combined contraceptives are recognised triggers.
Visible light sensitivity The compounding factor. Deeper skin responds to visible light with pigmentation that lighter skin does not develop — and standard sunscreen does not address it.

Family history is common, reported by a substantial share of patients across studies, which is why melasma often runs in families. Genes do not cause it directly — they set how readily melanocytes respond to the triggers above.

Melasma does occur in men, typically around one in ten cases, usually with substantial occupational sun exposure. It is under-recognised in men partly because it is framed as a women's condition.

Management

What Treatment Involves

There is no single best treatment, and anything promising a cure should be treated with suspicion. What the evidence supports is a layered approach, and the layers are not equally weighted.

  • Photoprotection, including visible light. The foundation, and the layer most often applied incompletely. Broad-spectrum UV protection plus iron oxides, daily, year-round. Everything else underperforms without it.
  • Prescription topicals. Hydroquinone, retinoids and combination formulations have the strongest evidence and are prescription-only for good reason — misuse carries real risks in deeper skin. A dermatologist's territory.
  • Supportive cosmetic ingredients. Tranexamic acid, niacinamide, azelaic acid, vitamin C, arbutin and kojic acid have all been studied. Response varies, effects are gradual, and these support rather than replace the layers above.
  • Procedures, cautiously. Peels and certain devices are used by dermatologists — and in Fitzpatrick IV–V they carry a genuine risk of making pigmentation worse if wrongly selected. Specialist assessment is not a formality here.
  • Trigger review. Discussing hormonal contraception and heat exposure with a clinician addresses inputs no topical reaches.

Why we are not recommending our own products here

Melasma is a medical condition, and cosmetic products are not a treatment for it. Our own clinical study measured pigmentation endpoints, and those endpoints did not reach statistical significance — so recommending our products on a melasma page would be claiming something our own data does not support. The honest answer to melasma is photoprotection that includes visible light, and a dermatologist.

Misconceptions

Misconceptions

✗ Myth: If I use high SPF, I'm protected

SPF measures UVB and PA measures UVA. Neither measures visible light, which induces pigmentation in deeper skin and passes through transparent sunscreen. Iron oxides — the tint — are what block it, and a trial found tinted sunscreen reduced melasma relapse compared with non-tinted using the same UV filters.

Fact: Look for iron oxides, not just a higher number.

✗ Myth: It came back, so the treatment failed

Melasma involves a damaged basement membrane and altered vasculature, not just overactive pigment cells. Treatment can suppress melanin production while that underlying change persists — so recurrence on stopping is the expected course, and maintenance is the appropriate response rather than evidence of failure.

Fact: Maintenance, not cure.

✗ Myth: Stronger and faster is better

In Fitzpatrick IV–V, aggressive peels, devices and irritating actives can trigger post-inflammatory hyperpigmentation on top of the melasma — leaving skin worse than before. This is the specific reason melasma in deeper skin needs a clinician rather than escalating experimentation.

Fact: Aggression backfires in deeper skin.

✗ Myth: It's a hygiene or lifestyle failing

Melasma is not contagious, not caused by uncleanliness, and not a sign of neglect. It reflects genetic susceptibility interacting with light and hormones. The blame attached to it in everyday conversation is unearned and does real harm.

Fact: Susceptibility plus triggers.

FAQ

Frequently Asked Questions

I wear sunscreen daily and my melasma still isn't improving. Why?
Most likely because you are protected against UV but not visible light. SPF measures UVB and PA measures UVA; neither measures visible light, and conventional transparent filters do not block it. In Fitzpatrick IV–VI, visible light induces pigmentation that is darker and longer-lasting than comparable UVA1 exposure. Iron oxides — the pigments in tinted sunscreen — do block it, and a randomised comparison found tinted sunscreen reduced melasma relapse versus non-tinted with the same UV filters. Look for CI 77491, CI 77492 and CI 77499 on the label.
Why does melasma keep coming back?
Because it is not only a pigment-cell problem. Melasma lesional skin shows a damaged basement membrane — the layer separating epidermis from dermis — which allows melanin to drop into the dermis where topicals cannot reach it. Lesions also show increased vascularity. Treatment can suppress melanin production while those structural changes persist, so pigmentation returns when treatment stops. Ongoing maintenance is the appropriate response, not evidence that something failed.
Is my pigmentation melasma or something else?
Symmetry is the most useful clue. Melasma appears in matching patches on both sides — typically cheeks, forehead, upper lip. Sun spots are discrete and scattered. Post-inflammatory pigmentation follows the shape of whatever inflamed the skin, such as a healed spot. Only a dermatologist can confirm which you have, and it matters because the management differs.
Can heat trigger it, separately from sun?
Infrared and ambient heat are implicated in pigmentation independently of ultraviolet exposure. Practically that means sustained heat — Indian summers, time near cooking, hot working environments — can contribute even where UV exposure is controlled. It does not replace sun protection as a priority, but it explains flares that do not track with sun exposure alone.
Will a stronger treatment clear it faster?
Often the reverse, and this matters specifically in Fitzpatrick IV–V. Aggressive peels, poorly selected devices and irritating actives can cause post-inflammatory hyperpigmentation layered on top of the melasma, leaving skin visibly worse. Inflammation is itself a pigmentation trigger in deeper skin. This is the concrete reason melasma here needs a dermatologist rather than escalating experimentation at home.
Does melasma go away after pregnancy?
Sometimes it fades substantially in the months after delivery as hormonal influences settle, and sometimes it persists. Either outcome is common. Photoprotection matters throughout, and since several melasma treatments are unsuitable in pregnancy and breastfeeding, this is worth discussing with your doctor rather than self-treating.
Can men get melasma?
Yes — roughly one in ten cases, usually in people with substantial occupational sun exposure. It is under-recognised partly because melasma is framed as a women's condition, which can delay men seeking assessment. The presentation and management are broadly the same.

The Bottom Line

If you have melasma and diligent sunscreen has not helped, the likeliest missing piece is visible light — unmeasured by SPF or PA, unblocked by transparent filters, and blocked by iron oxides. And it recurs because the basement membrane is damaged, letting pigment reach a depth topicals cannot follow. Tinted broad-spectrum protection daily, a dermatologist for the rest, and maintenance rather than a cure.

Scientific References

  1. Mahmoud BH, Ruvolo E, Hexsel CL, et al. Impact of long-wavelength UVA and visible light on melanocompetent skin. Journal of Investigative Dermatology. 2010;130(8):2092–2097.
  2. Boukari F, Jourdan E, Fontas E, et al. Prevention of melasma relapses with sunscreen combining protection against UV and short wavelengths of visible light: a prospective randomized comparative trial. Journal of the American Academy of Dermatology. 2015;72(1):189–190.e1.
  3. Torres-Álvarez B, Mesa-Garza IG, Castanedo-Cázares JP, et al. Histochemical and immunohistochemical study in melasma: evidence of damage in the basal membrane. American Journal of Dermatopathology. 2011;33(3):291–295.
  4. Kim EH, Kim YC, Lee ES, Kang HY. The vascular characteristics of melasma. Journal of Dermatological Science. 2007;46(2):111–116.
  5. Sanchez NP, Pathak MA, Sato S, Fitzpatrick TB, Sanchez JL, Mihm MC. Melasma: a clinical, light microscopic, ultrastructural, and immunofluorescence study. Journal of the American Academy of Dermatology. 1981;4(6):698–710.
  6. Handel AC, Miot LDB, Miot HA. Melasma: a clinical and epidemiological review. Anais Brasileiros de Dermatologia. 2014;89(5):771–782.
  7. Achar A, Rathi SK. Melasma: a clinico-epidemiological study of 312 cases. Indian Journal of Dermatology. 2011;56(4):380–382.
  8. Ogbechie-Godec OA, Elbuluk N. Melasma: an up-to-date comprehensive review. Dermatology and Therapy. 2017;7(3):305–318.

Note to editor: this list replaces the previous one, in which several entries had journal, volume or year mismatches. Please verify each entry before publication, and only display a reference count that matches the list.

Important: This article is educational and does not constitute medical advice, diagnosis or a treatment recommendation. Melasma is a medical condition requiring assessment by a qualified dermatologist. Descriptions of visible light, basement membrane changes, vascularity, prescription treatments and procedures describe published research and clinical practice, not the effect of any product. No Boldpurity product is recommended in this article, and cosmetic products are not a treatment for melasma. Sunscreens, prescription topicals and in-clinic procedures are referred to as general categories. Prescription treatments and procedures must be undertaken only under a dermatologist's supervision; several are unsuitable during pregnancy and breastfeeding, and anyone pregnant, breastfeeding or trying to conceive should consult a doctor before using any active ingredient. In Fitzpatrick IV–VI skin, inadequately selected procedures and irritating actives can worsen pigmentation. Individual response varies substantially. Aligned with the India CDSCO cosmetic framework, the Cosmetics Rules 2020 and the ASCI Code 2021.

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