Start with your concern

Pigmentation and uneven tone

Reviewed by Dr Ong Jin Khang

Brown marks look like one problem. They are at least three. A sun spot, melasma and the mark left behind by an old breakout can sit on the same cheek and look nearly identical, yet each needs different handling, and the treatment that clears one can make another worse. This is the concern where the diagnosis earns its keep.

The same brown patch can be three different problems.

What is actually going on

Pigment is the skin's response to provocation. Ultraviolet light, heat, hormones, friction and inflammation all tell pigment cells to produce more, and the pattern they leave behind depends on the trigger. Sun spots, properly called solar lentigines, are discrete patches from cumulative sun exposure. Melasma is a hormonally influenced pigmentation that sits deeper, often symmetrical across the cheeks or upper lip, and behaves less like a stain and more like a condition that needs long-term management. Post-inflammatory hyperpigmentation is the shadow left after acne, a rash or an injury, and it is common in Malaysian skin.

Patients describe all of them the same way: dark spots, brown patches, uneven skin tone. They look similar on the surface. Underneath, they differ in depth, in trigger and in temperament, which is why the assessment matters more than the machine. The marks are examined in proper light, sometimes under a diagnostic lamp, before anything is decided.

The honest map

For sun spots, freckles and general sun damage, a picosecond laser is usually the right tool. PicoSure breaks pigment into fragments the body clears over the following days, with little heat and little downtime. Discrete spots tend to respond well over a small number of sessions.

Melasma is a different conversation. It can be approached with laser, but conservatively and only in selected cases, because aggressive laser on the wrong melasma makes it darker. The foundation is usually less glamorous: strict sun protection, a prescription topical regime, control of heat and hormonal triggers, and patience. The laser, when it is used at all, is a supporting instrument rather than the answer.

Post-inflammatory marks often need the cause treated first. Clearing the shadow while the acne that created it is still active is painting over a leak. Sequence matters, and the plan usually runs cause first, pigment second.

Underneath all three sits the same unglamorous maintenance layer: daily sun protection, and a barrier in good enough condition to tolerate whatever the diagnosis calls for. A medical facial such as Hydrafacial lives there, cleansing, exfoliating and hydrating on a regular schedule. It clears no pigment on its own, and a patient who books a facial hoping to fade their marks is told that at the assessment rather than at the end of a course.

When we would say no

We do not laser a mark that has not been diagnosed. A pigmented spot that looks atypical, has changed recently, or does not fit a benign pattern is referred for a specialist opinion before any aesthetic treatment is considered. That is rare, but it is not negotiable.

We also decline to treat melasma as if it were a simple sun spot; managed carelessly, it rewards aggression with rebound. And when a patient cannot yet commit to daily sun protection, the honest advice is to wait, because in this climate the sun will out-work any laser.

How we tell them apart

The read starts with pattern and history, not the machine. Discrete patches with clean edges on sun-exposed skin point to solar lentigines. A symmetrical shadow across the cheeks or upper lip that darkens with sun and heat behaves like melasma. A mark that maps exactly onto an old spot or breakout is post-inflammatory. Under a diagnostic lamp, pigment sitting shallow behaves differently from pigment sitting deep, and depth changes both the tool and the odds.

Two questions do most of the work: when did it appear, and what makes it worse. Marks that flare with sun, heat and hormones are managed rather than lasered. Marks that have sat unchanged for years behind a clean border are usually the ones a laser clears cleanly. Getting that reading wrong is precisely how a confident laser turns melasma darker.

Our view

Pigmentation is the concern where the market and the medicine part company most visibly. It is sold as a single machine problem: one laser, a set number of sessions, a clear complexion. It is really three conditions wearing the same face. The work is to slow the decision down, name which one is in front of us, and sometimes to say the least glamorous thing in the room, which is sun protection first, laser later, or not at all.

It is not the treatment, it is the diagnosis, and nowhere on the face is that line more literally true. The same brown patch can be three different problems, and the one thing that reliably makes all three worse is treating them as though they were one.

Common questions

What is the best treatment for pigmentation?

There is no single best treatment, because pigmentation is not a single problem. Sun spots respond to a picosecond laser, melasma usually starts with topicals and strict sun protection, and post-inflammatory marks often need their cause treated first. The right answer follows the diagnosis, which is why assessment comes before any booking.

Why did my pigmentation come back after treatment?

Usually because the trigger is still active. Melasma in particular rebounds with sun, heat and hormonal shifts, so it is managed over time rather than erased once. Sun spots can also appear in new places if exposure continues. Maintenance is sun protection first, and a review when new marks appear.

Can pigmentation be removed in one session?

A single, well-defined sun spot may clear in one or two sessions. Diffuse sun damage takes a course, and melasma is managed rather than removed. A promise of complete removal of any brown mark in one visit describes marketing, not skin.

Is laser safe for darker skin tones?

It can be, with the right settings and the right selection. Skin types common in Malaysia carry a higher risk of post-inflammatory pigmentation if treated aggressively, which is why energy, wavelength and interval are chosen for the individual skin rather than taken from a standard protocol.

Do I need a laser at all?

Not always. Some pigmentation is handled better with a prescription topical regime and disciplined sun protection, and some marks are best left alone. The consultation exists to sort out which group yours falls into before money is spent on the wrong one.

What is the treatment for melasma?

Melasma is managed, not erased. The foundation is strict daily sun protection, a prescription topical regime, and control of heat and hormonal triggers. Laser can support that plan in carefully selected cases, always conservatively, because aggressive laser on the wrong melasma makes it darker. Anyone promising to remove melasma in a package of sessions is describing marketing.

Can I treat pigmentation at home?

Daily broad-spectrum sunscreen and a prescribed topical regime do real work, and for some marks they are most of the treatment. What a shelf of brightening products cannot do is diagnose, and used on undiagnosed melasma they can waste months while the trigger keeps working. Start with the diagnosis, and then the right topicals make sense.

Is melasma or a sun spot more common in Malaysian skin?

Both are common here, and the strong sun and heat make them easy to confuse. Melasma is frequent in women with the skin types common across Malaysia, and it is the one most often mistreated as though it were a simple sun spot. Telling them apart under proper light is the whole point of the assessment, because the two reward opposite handling.

From the journal

Not sure which kind yours is?

That is the assessment's job, not yours. In person, with Dr Ong: the marks are examined, the diagnosis is made, and the plan follows it, which may or may not involve a laser.

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