Melasma is one type of hyperpigmentation, not a separate condition. Hyperpigmentation is the umbrella term for any patch of skin that has made more pigment than the skin around it, and melasma, sun spots, age spots, freckles and post-inflammatory marks all sit underneath it. The distinction matters because the treatment that clears one can aggravate another.
Key takeaways
Written by Kiara DeWitt, BSN, RN, CPN, Advanced Clinical Nurse Injector. Medically reviewed by Dr. Josh Allen, D.O., Medical Director. Last updated August 2026.
Medical disclaimer: this article is for educational purposes only and does not constitute medical advice. Individual results vary, and melasma commonly recurs. Speak with a qualified clinician before starting any pigmentation treatment.
Hyperpigmentation is an umbrella term, not a single diagnosis. It includes melasma, sun spots, age spots, freckles and post-inflammatory marks. All melasma is hyperpigmentation. Not all hyperpigmentation is melasma.
Melasma often forms broad patches on both sides of the face. Sun spots are smaller and scattered. Freckles are tiny, inherited spots. Post-inflammatory hyperpigmentation, or PIH, appears after acne, injury or irritation. Color alone cannot identify the cause, which is why comparing melasma against a single undifferentiated bucket of dark spots leads people to the wrong treatment.
Hyperpigmentation means one area of skin contains more melanin than the skin nearby. Melanin is the pigment your skin makes to protect itself. Possible causes include sun exposure, inflammation, injury, hormones, medication and genetics.
The term covers several distinct pigment concerns:
More than one type can appear at the same time on the same face. That overlap is what makes self diagnosis so unreliable.
Melasma causes tan, brown, grey brown or blue grey patches, usually on the cheeks, forehead, upper lip, nose and chin. Similar patches typically appear on both sides of the face at once, which is the single most useful clue you can spot in a mirror.
Sunlight activates pigment production, and the American Academy of Dermatology lists sunlight, pregnancy, hormonal changes, tanning beds and certain medications among the known triggers. Melasma can persist for years, and recurrence is common even after a good result.
| Type | Main cause | Common location | Typical pattern | Symmetrical? | Who gets it | Treatment response | Recurrence |
|---|---|---|---|---|---|---|---|
| Melasma | Light, hormones, genetics and some medications | Central face | Broad, irregular patches | Often | More common in women and in deeper skin tones | Gradual and variable | Common |
| Sun spots or age spots | Cumulative UV exposure | Sun exposed skin | Separate, defined spots | Usually not | Increases with age and sun exposure | Often more predictable once diagnosed | New spots can develop |
| Freckles | Genetics plus UV exposure | Face and exposed skin | Tiny, scattered spots | Not necessarily | Often begins in childhood | May lighten | Common with sun exposure |
| Post-inflammatory hyperpigmentation | Acne, rash, wound, burn or irritation | Anywhere inflammation occurred | Follows the shape of the original injury | Usually not | Anyone, especially deeper skin tones | Can fade once the trigger is controlled | New inflammation creates new marks |
Sun spots develop after cumulative ultraviolet exposure. They are separate, flat, clearly defined spots on skin that has taken the most sun. Age spots and liver spots are other names for the same thing, solar lentigines, and they have nothing to do with the liver.
Melasma forms wider facial patches and usually mirrors across both sides of the face. Sun spots often respond more predictably to targeted sun spot and hyperpigmentation treatment, while melasma calls for far more caution. Treating melasma as though it were a sun spot is one of the most common ways people make it worse.
Freckles are small, flat spots shaped by genetics and brought out by sun exposure. They usually begin in childhood and darken through the sunnier months, then fade again in winter.
Melasma tends to begin later in life and produces larger, connected patches rather than scattered dots. Freckles do not follow the hormonal pattern melasma does. Sun protection can reduce how dark freckles get, but it will not change an inherited tendency to freckle, and in most cases freckles need no treatment at all.
Post-inflammatory hyperpigmentation appears after inflammation or injury. Triggers include acne, eczema, insect bites, burns, cuts, picking and irritating skincare. The mark traces the outline of whatever caused it, which is usually the giveaway.
Melasma can arise with no preceding wound and follows a symmetrical facial pattern instead. The American Academy of Dermatology advises treating the underlying cause first when dark spots follow acne or another skin condition. Continued acne, irritation or picking simply creates new marks, and harsh scrubbing tends to prolong the discoloration rather than lift it. PIH is more common and more persistent in deeper skin tones, which is why the treatment approach has to account for skin tone rather than pigment alone.
Pattern gives you clues, but appearance alone cannot confirm a diagnosis, and some of these genuinely look identical to the naked eye. A qualified clinician should assess pigment that is new, changing, persistent or resistant to treatment before any procedure is booked.
Four things are worth looking at:
A clinician may use a Wood’s lamp or a dermatoscope to estimate how deep the pigment sits. That matters more than it sounds, because pigment in the upper layer of skin and pigment deeper in the dermis respond very differently to the same treatment, and depth is what usually predicts whether treatment will work. A changing lesion needs medical evaluation before any cosmetic treatment is considered. You can meet our clinical team to see who provides and oversees care at InjectCo.
A careful assessment identifies the likely trigger, the pigment depth and the risks before the wrong procedure makes the discoloration harder to correct.
Treatment should match the cause, the pigment depth, the skin tone and the recurrence risk. Every approach starts in the same place, with sun protection and trigger control, because no treatment can outwork repeated exposure to a known trigger.
Broad spectrum SPF 30 or higher, shade and protective clothing all help limit reactivation, and a tinted sunscreen containing iron oxides adds protection against visible light, which plain sunscreen does not filter. Hydroquinone and tretinoin are prescription medicines that require assessment and clinical supervision, and they are not products to buy and try on your own. The FDA states that over the counter sale of hydroquinone skin lightening products is illegal in the United States and that a prescription product containing hydroquinone is available from a health care provider. Reported effects include rash, facial swelling and skin discoloration that can be permanent.
Some patients are suitable candidates for chemical peels or a conservative melasma laser treatment. Laser and light devices are not an automatic first choice for melasma. A 2024 review of melasma management notes that using these devices as a single treatment can sometimes worsen melasma and produce rebound lesions once treatment stops. That is the reason conservative settings and a staged plan are standard, and it is the single most important thing to understand before booking anything for melasma.
Once a clinician has confirmed the spots are benign, topical care, peels or targeted laser skin rejuvenation may be appropriate. Daily protection is still necessary afterwards, because new spots keep forming on skin that keeps taking sun.
Freckles may lighten with consistent sun protection or with selected cosmetic treatment, but a genetic tendency to freckle does not go away. The realistic goal is controlled fading, not erasure, and many people are better served by leaving them alone.
Control the acne, eczema or irritation first. Procedures need care here because inflammation is what created the pigment in the first place, and adding more of it can deepen the mark rather than lift it.
Skin tone is not a detail, it changes what is safe. Lighter skin generally tolerates a wider range of device settings, though melasma still needs a conservative approach regardless of tone. Medium skin sits in between and benefits from careful test patches and staged sessions. Deeper skin tones carry a higher risk of burns, inflammation and treatment induced post-inflammatory hyperpigmentation, so device selection, energy settings and pre-treatment preparation all have to be adjusted. Any clinician treating pigment should be assessing your skin tone before they discuss a device at all.
Protect your skin from unnecessary procedures and get a conservative recommendation based on the pigment you actually have.
These are the questions patients ask most often when they are trying to work out which kind of pigmentation they have.
Yes. Melasma is a specific type of hyperpigmentation, which is the general term for skin that looks darker than the areas around it. Melasma commonly forms broad, symmetrical facial patches and may be influenced by light, heat, hormones, medications and genetics. That recurring pattern is what separates it from other pigment concerns.
Hyperpigmentation is the umbrella term for any area of skin that appears darker than nearby skin. Melasma is one recurring pigment disorder with a characteristic facial pattern and its own triggers. Freckles, sun spots and post-inflammatory hyperpigmentation are separate forms, so identifying the cause matters before choosing any treatment.
No. Melasma can often be controlled and lightened, but no treatment can promise it will never return. Sunlight, visible light, heat, hormonal changes and certain medications can all reactivate pigment. Long term sun protection, trigger management and maintenance treatment are usually needed to hold on to an improvement. Individual results vary.
Melasma often worsens in summer because stronger and more frequent ultraviolet and visible light exposure stimulates pigment production. Heat can aggravate it for some people as well. Daily broad spectrum sunscreen, tinted protection containing iron oxides, shade and protective clothing all remain important between treatments, not only during them.
It can be appropriate for carefully selected patients, but it calls for caution. Deeper skin tones carry a higher risk of burns, inflammation and treatment induced post-inflammatory hyperpigmentation. An experienced clinician should confirm the diagnosis, assess skin tone and pigment depth, and use conservative device settings to reduce that risk.
The real difference in melasma vs hyperpigmentation is why the pigment formed and how the skin is likely to respond. Melasma needs long term control and conservative choices. Sun spots, freckles and post-inflammatory hyperpigmentation each need something different.
An accurate assessment can save months of ineffective products and lower the risk of making the pigment worse. Start with the diagnosis, protect your skin every day, and choose a treatment that fits the pigment you actually have. Individual results vary, and melasma commonly recurs without ongoing sun protection.
Find out whether you are dealing with melasma, sun damage, freckles or post-inflammatory marks before spending money on the wrong solution.
Dr. Allen earned his Doctor of Osteopathic Medicine at Lake Erie College of Osteopathic Medicine and completed his emergency medicine residency with Texas A&M. As Medical Director, he reviews InjectCo’s treatments, protocols, and patient education content for accuracy and safety across all nine Texas locations.
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