Melasma, freckles and sun spots can all appear brown, but they are not interchangeable. They develop for different reasons, follow different patterns and do not always respond safely to the same treatment.

That is why “remove my pigmentation” is not yet a treatment plan. The first decision is whether a mark is suitable for cosmetic care at all. The second is identifying which pigment process is most likely present.

The short answer: freckles often become more visible with seasonal sun; solar lentigines are more persistent, defined marks associated with cumulative UV exposure; melasma usually appears as broader, blotchy and often symmetrical facial pigmentation. New, changing or unusual marks need medical assessment before cosmetic treatment.

Freckles: small marks that respond to the seasons

True freckles—called ephelides—are small, flat marks that often begin in childhood, become more noticeable after sun exposure and may fade through winter. DermNet explains that the colour comes from increased melanin production rather than an increased number of pigment-producing cells.

Freckles are generally harmless. Their seasonal behaviour and scattered pattern help distinguish them from other brown marks, but any spot that changes or looks different from the rest should still be checked.

Sun spots: persistent signs of cumulative exposure

Solar lentigines—often called sun spots, age spots or liver spots—are usually flat, more defined and persistent through the year. They commonly appear on repeatedly exposed areas such as the face, hands, forearms and upper chest.

DermNet describes solar lentigo as a common benign lesion related to chronic ultraviolet exposure. However, a lesion that resembles a sun spot can sometimes be something else. The Australasian College of Dermatologists notes that lentigo maligna, an early form of melanoma, may look like a freckle, age spot, sun spot or brown patch that slowly changes shape and grows.

Melasma: a pattern, not a single spot

Melasma most often presents as bilateral, blotchy brown pigmentation on the face. It can involve the cheeks, forehead, upper lip or jawline and is typically more common in women and in skin that tans readily.

Its causes are complex. DermNet lists ultraviolet and visible light, genetic predisposition and hormonal factors—including pregnancy and some hormone-containing medicines—among the influences. Heat and irritation may also matter for some people.

Melasma is usually managed rather than permanently “erased”. Even when it improves, renewed sun exposure can bring pigment back. A plan that is too aggressive may also create irritation or post-inflammatory pigment, particularly in skin that pigments readily.

Post-inflammatory pigmentation can join the picture

Brown or grey colour can remain after acne, dermatitis, injury or a procedure. This is post-inflammatory hyperpigmentation. The Australasian College of Dermatologists notes that it can resemble melasma and other pigment conditions and is more common in skin of colour.

It may sit alongside melasma, freckles or sun damage. If inflammation is still active, controlling the cause often comes before trying to fade the mark it left behind.

When a brown mark needs a doctor, not a cosmetic treatment

Cosmetic light, laser or peel treatment should never be used to “test” what a suspicious lesion is. Healthdirect advises medical review for a spot that is new, changing in size, shape, colour or texture, looks different from your other spots, bleeds, itches or fails to heal.

Seek a GP or dermatologist before cosmetic treatment if a mark:

A skin consultation at neoSKiN is not a skin-cancer check. We will refer any lesion that is clinically uncertain or unsuitable for cosmetic treatment.

Why the diagnosis changes the treatment plan

Selected superficial sun spots may respond to a carefully chosen pigment or light-based treatment. Diffuse photodamage may call for a broader tone-and-texture plan. Melasma usually requires more conservative, long-term control with strict light protection, appropriate home care and careful selection of any procedure.

Depending on assessment, neoSKiN may discuss options such as BBL BroadBand Light, MOXI laser, selected peels and resurfacing, or a home-care programme. None is right for every pigment concern, and a device name should never come before a diagnosis and suitability check.

The constant: protect pigment from more UV

Sun protection is part of every pigmentation plan. It helps reduce new UV-related change and limits one of the triggers that can deepen melasma or post-inflammatory pigment.

Use broad-spectrum, water-resistant SPF50 or SPF50+ when the UV Index is 3 or above, together with shade, protective clothing, a broad-brimmed hat and sunglasses. Read our guide to what SPF 50+ actually means for application quantities and reapplication.

Frequently asked questions

How can I tell melasma from sun spots?

Melasma commonly forms broader, blotchy and often symmetrical facial patches. Solar lentigines are usually more discrete and defined. Because different conditions can overlap or mimic one another, appearance alone is not enough for a safe diagnosis.

Can BBL treat all pigmentation?

No. BBL may suit selected superficial pigment after assessment, but not every brown mark or every case of melasma. Recent tanning, skin tone, pigment depth, medication and the diagnosis all affect suitability.

Why does melasma come back?

Melasma is influenced by ongoing factors including ultraviolet and visible light, hormones and genetic predisposition. Even after improvement, it can recur with renewed exposure or other triggers.

Should a sun spot be checked before laser or IPL?

Yes if it is new, changing, irregular, unlike your other spots or otherwise concerning. A GP or dermatologist should assess suspicious lesions before any cosmetic treatment.

Sources and further reading

This article provides general information and is not a diagnosis. New, changing or suspicious lesions require assessment by a medical practitioner.