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Clinically Reviewed by: Angelica McWilliams, Licensed Advanced Esthetician

Melasma usually shows up as symmetrical, blotchy patches on the cheeks, forehead or upper lip, and it is driven by hormones, heat and light. Sun damage usually shows up as scattered, well-defined brown spots on skin that has had years of exposure. Many people have both at once, and the two respond to very different treatment. A peel or laser that clears a sun spot can make melasma darker. That is why the distinction matters before you spend money on anything.

TL;DR

Pattern: melasma is typically symmetrical patches. Sun damage is typically scattered, distinct spots, often on the face, chest and hands.
Cause: melasma is a pigment-cell overactivity triggered by hormones plus UV and visible light. Sun damage is cumulative UV injury.
Outlook: sun spots can be treated and often removed. Melasma can be quieted, but it tends to come back, so it needs lifelong sun protection.
Risk: aggressive lasers and peels on melasma can backfire into lasting pigment. Get the diagnosis first.
Next step: a free consultation at our Northwest Portland clinic can sort out which one you have, or whether it is both.

What melasma looks like
What sun damage looks like
Melasma vs. sun damage at a glance
Why the difference matters for treatment
Does the sun trigger melasma?
Can you get melasma on your chest?
How a professional tells which one you have
What treatment looks like for each
Our perspective: diagnose first, then go slowly
Start with a free consultation
Protecting your skin day to day
FAQ
Sources

What melasma looks like

The American Academy of Dermatology describes melasma as a condition in which pigment cells become more active, which can follow sun exposure, pregnancy, stress, a medical condition or certain medications. The patches are usually tan, brown or gray-brown, and they tend to mirror each other on both sides of the face.

Common places:

Cheeks and the bridge of the nose
Forehead
Upper lip
Chin and jawline

Melasma is not limited to the face. DermNet notes that it can appear on sun-exposed areas such as the forearms, upper arms and shoulders. Chest involvement is less typical, so a patchy chest is more likely to be sun damage.

Family history matters too. In the DermNet summary, about 60% of people with melasma report affected relatives, alongside sun exposure and hormonal factors such as pregnancy and estrogen-containing medications. It is often called the “mask of pregnancy”, as Cleveland Clinic explains, though plenty of people who have never been pregnant, including men, get it.

What sun damage looks like

Sun damage, also called photoaging, is the visible result of years of UV exposure. Mayo Clinic notes that hours outdoors add up over months and years and can cause a range of skin changes.

Typical signs:

Individual brown spots (solar lentigines, often called sun spots or age spots) with fairly clear edges
Uneven tone and a rough or leathery texture
Fine lines and broken capillaries
Spots on the face, shoulders, chest and the backs of the hands

There is rarely a symmetrical “mask”. The spots are scattered and vary in size, and they tend to increase in number with age.

Melasma vs. sun damage at a glance

	Melasma	Sun damage (sun spots)
Pattern	Larger, symmetrical patches	Scattered, distinct spots
Main drivers	Hormones, genetics, UV, visible light, heat	Cumulative UV exposure
Typical color	Tan, brown or gray-brown	Light to dark brown
Common areas	Cheeks, forehead, upper lip	Face, chest, hands, shoulders
Can fluctuate?	Yes, often worse in summer	Slowly accumulates, does not come and go
Treatment approach	Gentle, staged, with strict protection	Often responds well to light-based treatment and peels
Recurrence	Common	New spots form if UV protection lapses

Treat the table as a guide, not a diagnosis. Both can sit on the same cheek, and other conditions, including post-acne marks, can look similar.

Why the difference matters for treatment

The AAD research behind this article makes the core point: sun damage represents cumulative DNA changes in skin cells, while melasma is a chronic, manageable condition involving overactive pigment cells. Cleveland Clinic frames it similarly: the underlying UV change in skin cell DNA is permanent, but the visible signs of sun damage are highly treatable.

In practice:

Sun spots are a surface and upper-layer problem. Targeted energy that breaks up pigment can lift them. Our IPL photofacial is one option we use for this.
Melasma is a signaling problem, not just a stain. Heat, inflammation and strong light can switch pigment cells on again. The AAD advises that aggressive lasers or peels without proper preparation often backfire and can leave lasting post-inflammatory hyperpigmentation.

The lesson is not that melasma can never be treated in a clinic. It is that the plan has to be slower, gentler and sequenced. If you want a clinician’s perspective on how resurfacing technologies are matched to specific skin concerns, this write-up on plasma resurfacing indications is a useful read.

Does the sun trigger melasma?

Yes. Hormones set the stage, and light often pulls the trigger. The AAD says visible light is a consistent trigger for both onset and relapse, which is why year-round protection is part of management. Heat also matters: warm weather or saunas can darken patches.

This is where ordinary sunscreen falls short. UV filters alone do not block visible light. Dermatologists recommend tinted sunscreens containing iron oxide in addition to broad-spectrum protection.

Portland note: our gray months can lull people into skipping sunscreen. UV and visible light still reach the skin on overcast days, and many people see pigment flare after a sunny summer. If that is your pattern, our guide to repairing post-summer pigmentation and sun damage covers the timing.

Can you get melasma on your chest?

It is less common, but extrafacial melasma exists, mostly on the arms and shoulders. Dark spots on the chest are more often sun damage, especially if they are scattered and have crisp edges. Because the two are treated differently, have a professional look before you try anything strong on the décolleté.

Chest-area clues for melasma and sun damage

How a professional tells which one you have

A reliable assessment usually combines several things. Dermatologists commonly use your history (pregnancy, birth control, sun habits), a Wood’s lamp exam that gauges pigment depth, dermoscopy and, in select cases, a biopsy.

Bring these to any consultation:

When the patches first appeared, and whether they changed with seasons or hormones
Any medications, including birth control or hormone therapy
Your current sunscreen and skincare, including anything with hydroquinone
A note on whether the patches are symmetrical
Any history of dark marks after acne, waxing or past treatments

If a spot is new, changing, bleeding or irregular in shape, see a dermatologist for a skin cancer check before cosmetic treatment. That is not something to treat as a pigment issue.

What treatment looks like for each

Sun damage

Because sun spots are discrete, the options are fairly direct:

IPL photo rejuvenation targets pigment and redness. At our clinic it is $160 per single area, $280 for the face and neck combo, or $215 for the PhotoFacial.
Chemical peels refine tone and texture. See our peel options: MandeliClear with Vitamin A Accelerator is $175, VI Peel Original is $300 and VI Peel Purify is $350.
Fractional laser is another route for sun-damaged skin. DermNet describes it as bridging ablative and non-ablative techniques. It is a stronger option and a poor fit for melasma-prone skin.
Daily SPF to stop new spots from forming.

Melasma

There is no single cure. The research behind this piece points to a layered, lifelong plan:

Strict daily protection with tinted iron-oxide sunscreen
Prescription topicals, such as triple-combination creams or azelaic acid, prescribed by a clinician
Carefully chosen in-clinic procedures, only after skin is prepared

A word on hydroquinone. The FDA says the only approved hydroquinone medication is prescription Tri-Luma cream, and it warns that over-the-counter skin-lightening products with hydroquinone are not legally marketed and can carry risks such as ochronosis, a permanent blue-black discoloration. The Tri-Luma label is for short-term treatment of moderate to severe facial melasma. Talk to a dermatologist or your prescriber about any prescription lightening cream.

On the clinic side, we use gentler, staged approaches. See how we combine them in our staged RF microneedling and VI Peel approach for melasma, and how the two conditions compare in melasma vs. hyperpigmentation. If your skin is deeper in tone, read our clinician guide to chemical peels for dark spots first, since the risk of post-inflammatory pigment is higher.

Our perspective: diagnose first, then go slowly

Most clients who come to us with “dark spots” have a mix. A woman in her late thirties might have melasma across the cheeks and a few scattered sun spots at the temples. Treating all of it like sun damage is the most common mistake we see people make elsewhere.

Our approach is simple. We look at the pattern, ask about hormones and medications, and decide which concern leads. Sun spots can be handled with light-based treatment or a peel. If melasma is in the picture, we avoid aggressive heat and inflammation, protect the skin first and build treatment in stages. We also tell clients plainly that melasma is managed rather than cured, so the goal is a calmer, lighter and more stable result with good sun habits.

We also adapt protocols to the Pacific Northwest, where sun exposure is strongly seasonal. Many clients do their best work in the fall and winter, when there is less UV and less heat. Our melasma and hyperpigmentation approach for the Pacific Northwest explains the timing.

— Angelica McWilliams, Licensed Advanced Esthetician

Start with a free consultation

If you are not sure which one you have, the most useful step is a look in person. Our consultations are free and no-pressure. We will tell you what we see, what we would and would not treat, and what it costs. Browse our melasma and pigmentation treatments in Portland, see microneedling options (from $185 per area for standard microneedling, $285 for PRF or RF microneedling) or book through our site.

Protecting your skin day to day

Whichever you have, protection decides whether results last.

Use a broad-spectrum sunscreen every morning, with iron oxides if you have melasma or a tendency to it.
Reapply if you are outdoors, and add a hat for gardening, hiking or the Columbia River Gorge.
Limit heat exposure to the face where you can, since warmth can darken melasma.
Do not pick, scrub or use harsh at-home acids on patches. Irritation can worsen pigment.
Schedule treatments out of peak sun months and be patient, since fading takes weeks to months.

For a wider view, our anti-aging solutions list for adults 30 to 60 shows how pigment care fits with texture and firmness.

FAQ

Which vitamin is best for melasma?

No vitamin is a proven fix on its own. Topical vitamin C is often used as an antioxidant in routines, and a clinician may add it to a plan. The foundations remain tinted iron-oxide sunscreen and, when appropriate, prescription treatment. Ask your dermatologist before adding supplements.

Is it too late to fix sun-damaged skin?

No. The underlying DNA change cannot be undone, but the visible signs such as spots, texture and wrinkles are highly treatable. Results depend on the treatment and your skin, and daily sunscreen keeps new damage from building up.

Can melasma go away on its own?

Sometimes. The AAD says it may fade when a trigger such as pregnancy or a medication ends, but it can also last for years. It is prone to returning with sun, hormone changes or stress.

Can I have melasma and sun damage at the same time?

Yes, and it is very common. Because the safest treatment differs for each, a professional assessment helps decide which to address first. Usually we calm melasma risks and protect the skin before treating sun spots in the same area.

Melasma vs. Sun Damage: How to Tell Them Apart