September 25, 2026
Hyperpigmentation: what it is and what fades it
Hyperpigmentation is skin darker than normal because of extra melanin. The main types, what causes them, what fades them, and which spots need a doctor.
By Nick, Founder of Skinli. Not a doctor. General education only.
Hyperpigmentation is skin that is darker than normal. The American Academy of Dermatology says dark spots are one of the most common reasons people with darker skin tones see a dermatologist. The term covers several different conditions: the marks pimples leave, the brown spots that come with years of sun, and the patches of melasma. This guide explains what hyperpigmentation is, how to tell the types apart, what fades each one, and when a dark spot needs a doctor. Skinli is a free acne tool, so acne marks get the most detail here, and every other type has its own page in this hub.
What hyperpigmentation is
Skin gets its color from melanin, a pigment made by cells called melanocytes. MedlinePlus, the health library of the U.S. National Library of Medicine, says skin with too much melanin is called hyperpigmented. Skin with too little is hypopigmented, and skin with none is depigmented.
The American Academy of Dermatology (AAD) explains that dark spots appear when something triggers the skin to make extra melanin. Once the trigger stops, many spots fade on their own over time. The same idea appears on every page in this hub: find the trigger first.
MedlinePlus says skin color changes are generally cosmetic and do not affect physical health, though they can cause real stress. A few changes are signs of something else, and the last section of this guide lists them.
The main types
| Type | What it looks like | Main cause | Guide |
|---|---|---|---|
| Marks after pimples (post-inflammatory hyperpigmentation) | Flat brown, gray, red or pink spots where acne was | Inflammation from acne | Dark marks after pimples |
| Sun spots (age spots, liver spots) | Flat, tan to black, on skin that got years of sun | Ultraviolet light | Sun spots |
| Melasma | Patches on both sides of the face | Hormones, sun and visible light | Melasma |
| Other discoloration | Patches with many possible causes, darker or lighter | Medicines, hormone conditions, infections and more | Skin discoloration |
The color of a mark depends on skin tone and depth. The AAD says marks left by acne are usually red or pink on lighter skin, and often brown or bluish gray on medium and darker skin. Color that lies deep in the skin is often slate blue to gray. A 2010 review in the Journal of Clinical and Aesthetic Dermatology explains that pigment near the surface looks tan to dark brown, while pigment in the deeper layer looks blue-gray.
What causes hyperpigmentation
MedlinePlus lists these causes of darker skin:
- Skin inflammation, such as acne
- Sun exposure
- Pregnancy
- Certain medicines, such as minocycline, some cancer medicines and birth control pills
- Hormone conditions, such as Addison disease
- Iron overload
- Certain birthmarks
- Acanthosis nigricans, a condition that causes dark, thick, velvety skin in body folds
The AAD adds everyday triggers that matter most on medium and darker skin: a cut, burn or insect bite as it heals, and skin or hair products that irritate.
If you think a prescribed medicine is causing dark spots, the AAD says to keep taking it and ask the doctor who prescribed it. Stopping a medicine on your own can make you sick.
Who gets it most
Anyone can get dark spots, but medium and darker skin tones get them more easily and keep them longer. The 2010 review found pigment disorders were the third most common skin diagnosis among Black patients in one study, at 9%, and the seventh among white patients, at 1.7%. The AAD says melasma is most likely in women with medium to dark skin tones, and MedlinePlus says sun spots are common after age 50 and most frequent in people with fair skin. The dark spots on darker skin page covers the extra care darker skin needs, because on darker skin, irritation alone can leave a mark.
Why light matters
Sun makes the common types of hyperpigmentation worse. The AAD says sunlight triggers the body to make more melanin, which can darken melasma and cause new patches. The 2010 review says marks left after inflammation can worsen with ultraviolet light.
Visible light, the ordinary light we see, matters too. The AAD says it can increase skin darkening, particularly in darker skin tones, and that research shows it can worsen dark spots caused by the sun. Tinted sunscreens contain iron oxide, a pigment that helps protect against visible light. The page on darker skin also covers the 2010 study behind this, in which visible light caused darker and longer-lasting pigment than long-wave UVA light in darker skin types.
What fades hyperpigmentation
The AAD gives one order of care that works across types.
1. Find and stop the cause
For acne marks, that means treating the acne. The AAD says you must treat the skin condition first, because each breakout can leave a new mark. For sun spots and melasma, it means sun protection. For irritation, it means gentler products. The step-by-step version is in how to get rid of dark spots on your face.
2. Protect the skin every day
The AAD says effective treatment for dark spots begins with sunscreen. It recommends a tinted sunscreen with iron oxide that is SPF 30 or higher, broad-spectrum, water-resistant and a shade that blends with your skin. Put it on before going outside, reapply every two hours outdoors, and add a wide-brimmed hat.
3. Add one fading ingredient
The AAD lists five ingredients sold without a prescription that can fade existing spots:
| Ingredient | Best fit | Guide |
|---|---|---|
| Azelaic acid | Acne marks, since it also treats acne | Azelaic acid for dark spots |
| Retinoids (retinol, adapalene, tretinoin, tazarotene) | Acne marks and sun spots | Retinol and tretinoin for dark spots |
| Vitamin C | Uneven tone and melasma, with few side effects | Vitamin C for dark spots |
| Glycolic acid | On the AAD list | Not covered in this hub |
| Kojic acid | On the AAD list | Not covered in this hub |
Niacinamide is popular but is not on the AAD list. The niacinamide page explains what its trials found.
Add one product at a time and stop anything that burns or stings. On darker skin, the AAD warns that irritation can itself cause new dark marks.
4. Get help for stubborn spots
The AAD says some spots need a prescription-strength treatment, and that a dermatologist can safely combine treatments. Options include prescription creams, laser, chemical peels and freezing. The FDA says no skin lightening product is legally sold over the counter in the US, and that Tri-Luma, a prescription cream, is the only FDA-approved drug that contains hydroquinone.
What to avoid
- Illegal or imported lighteners. The FDA has warned about hydroquinone products sold over the counter, and about mercury in some imported creams. The AAD says researchers have found hidden steroids or mercury in imported skin products.
- Liquid bleach. The AAD says never to put it on your skin.
- At-home peels and devices on darker skin. The AAD says they can cause permanent dark marks and light spots.
- Picking. The AAD says squeezing a pimple increases inflammation, the trigger for acne marks.
How long fading takes
The AAD says a flat spot a few shades darker than your skin usually fades within 6 to 12 months once its cause stops, and that deep color can take years. For melasma, it says treatment usually takes 3 to 12 months to show results. The timeline page breaks this down by type.
How Skinli's plan handles acne marks
Skinli builds an acne plan from one photo and two questions. When the photo shows flat red or brown marks, the 12-week plan adds an azelaic acid 10% cream in the morning from week 5, before sunscreen, next to the night acne gels, adapalene 0.1% and benzoyl peroxide 2.5%. Sunscreen of SPF 30 or more goes on every morning from the start, because sun makes marks darker. Dents and raised scars are different, and creams cannot fix them. Those are covered in how to get rid of acne scars.
When a dark spot needs a doctor
Most dark spots are harmless, but the AAD says what looks like an age spot could be skin cancer, and fading a skin cancer can give it time to grow. See a dermatologist before treating any spot that is new and unlike your others, or that changes in size, shape or color, itches or bleeds. MedlinePlus also advises a visit for lasting color changes with no known cause. The full list of warning signs, including the ABCDEs of melanoma, is in when a dark spot needs a doctor.
Every dark spot guide, by topic
Fading dark marks
- Dark marks after pimples: why they form and fadeDark marks after pimples are flat spots of extra color that usually fade. Why acne leaves them, what makes them last, and the steps that help them fade.
- How long do dark marks take to fade?A flat dark mark a few shades darker than your skin usually fades in 6 to 12 months, per the AAD. Deep blue-gray color can take years. What speeds it up.
- How to get rid of dark spots on your faceHow to get rid of dark spots on your face: find the cause, wear sunscreen every day, add one proven ingredient, and know when a dermatologist should help.
Kinds of dark spots
- Sun spots: what they are and how to fade themSun spots are flat brown spots on skin that has had years of sun. How to tell them from skin cancer, what fades them, and how to stop new ones forming.
- Melasma: causes, triggers and treatmentMelasma causes brown or gray patches on both sides of the face. What triggers it, why sun and visible light matter, and the treatments dermatologists use.
- Skin discoloration: causes and when to worrySkin discoloration means patches darker or lighter than your normal skin. The common causes, how doctors find the cause, and which changes need a doctor.
- Dark spots on darker skin: what fades themWhy medium and dark skin tones get more dark spots, how visible light and irritation play a part, and the gentle, steady steps the AAD recommends.
- When a dark spot needs a doctorMost dark spots are harmless. The ABCDE signs of melanoma, which changes need a dermatologist soon, and why you should never fade a spot before it is checked.
Ingredients that fade dark spots
- Retinol and tretinoin for dark spotsDoes retinol or tretinoin help dark spots? What the trials found for acne marks, sun spots and melasma, how long they take, and how to avoid new marks.
- Azelaic acid for dark spots: what it doesAzelaic acid treats acne and the dark marks acne leaves. How it works on pigment, what the trials found, how to use it, and the one warning for dark skin.
- Vitamin C for dark spots: what the evidence showsVitamin C is on the AAD list of ingredients that fade dark spots. How it works, what the one melasma trial found, why it breaks down, and how to use it.
- Niacinamide for dark spots: does it help?Does niacinamide help dark spots? What the trials found for melasma and sun-related spots, the strengths they used, and the gap for acne marks on dark skin.
Frequently asked questions
What is hyperpigmentation?
Hyperpigmentation is skin that is darker than normal because it has too much melanin, the pigment that gives skin its color, according to MedlinePlus. It can appear as small spots or larger patches. Common types include marks left after acne or other inflammation, sun spots from years of sun, and melasma, which is linked to hormones. Most types are harmless and many fade with care.
What's hyperpigmentation caused by?
Hyperpigmentation is caused by anything that makes skin produce extra melanin. MedlinePlus lists skin inflammation such as acne, sun exposure, pregnancy, certain medicines such as minocycline and birth control pills, hormone conditions such as Addison disease, iron overload and some birthmarks. The American Academy of Dermatology adds cuts, burns, insect bites and skin products that irritate, especially on medium and darker skin.
Is hyperpigmentation the same as dark spots?
Hyperpigmentation is the medical term for skin that is darker than normal, and dark spots are one form of it. The American Academy of Dermatology uses the two terms together, and says some people call post-inflammatory hyperpigmentation, the marks left after acne, simply hyperpigmentation. Melasma patches and sun spots are other forms. Each type has its own causes and treatment.
Does hyperpigmentation go away?
Hyperpigmentation often goes away once its cause stops, depending on the type. The American Academy of Dermatology says a spot a few shades darker than your skin usually fades within 6 to 12 months, while deep blue-gray color can take years. Melasma may fade after pregnancy but can last for years. MedlinePlus says sun spots are permanent unless treated.
Can hyperpigmentation be cured?
Hyperpigmentation cannot always be cured for good, but it can be faded and new spots can be prevented, according to the American Academy of Dermatology. It says you can get rid of dark spots, but new ones can form. Its prevention steps are sunscreen reapplied every two hours outdoors, a wide-brimmed hat, avoiding midday sun, gentle skin care and treating any skin condition behind the spots.
What is the best thing to use for hyperpigmentation?
The first thing to use for hyperpigmentation is sunscreen, according to the American Academy of Dermatology, which says effective treatment for dark spots begins with it. It recommends a tinted sunscreen with iron oxide and SPF 30 or higher. After the cause is stopped, it lists five ingredients sold without a prescription that can fade spots: azelaic acid, glycolic acid, kojic acid, a retinoid and vitamin C.
Is hyperpigmentation caused by the sun?
Hyperpigmentation is often caused or worsened by the sun. The American Academy of Dermatology says sunlight makes skin produce more melanin, which darkens melasma and causes sun spots. It also says visible light, the ordinary light we see, can increase skin darkening, especially in darker skin tones. A 2010 review says marks left after inflammation can worsen with ultraviolet light.
What does hyperpigmentation look like?
Hyperpigmentation looks like flat spots or patches darker than the skin around them. The American Academy of Dermatology says marks after acne are often brown on medium or darker skin and can be bluish gray, while color deep in the skin looks slate blue to gray. Sun spots are flat and tan to black, and melasma forms patches on both sides of the face.
Can hyperpigmentation be red?
The flat marks left after acne can be red or pink, especially on lighter skin, according to the American Academy of Dermatology. It says that on lighter skin the flat spot left after a pimple is usually red or pink, while medium or darker skin more often shows a brown or bluish gray spot. The AAD says these red spots can linger for months.
Who treats hyperpigmentation?
A board-certified dermatologist treats hyperpigmentation, and the American Academy of Dermatology says dark spots are one of the most common reasons people with darker skin tones see one. A dermatologist can find the cause, check that a spot is not skin cancer, prescribe stronger creams and safely combine treatments such as laser, chemical peels and prescription hydroquinone, which is not sold over the counter in the US.
Is hyperpigmentation bad?
Hyperpigmentation is usually harmless to health. MedlinePlus says skin color changes are generally cosmetic and do not affect physical health, though they can cause stress. A few changes need a doctor: MedlinePlus lists lasting color changes with no known cause, and any spot that changes shape, size or color, which may be a sign of skin cancer. Dark, thick, velvety skin in body folds also needs a check.
Sources
- Abnormally dark or light skin (MedlinePlus, U.S. National Library of Medicine)
- Patchy skin color (MedlinePlus, U.S. National Library of Medicine)
- How to fade dark spots in darker skin tones (American Academy of Dermatology)
- Acne scars: Signs and symptoms (American Academy of Dermatology)
- Melasma: Overview (American Academy of Dermatology)
- Melasma: Diagnosis and treatment (American Academy of Dermatology)
- Liver spots (MedlinePlus, U.S. National Library of Medicine)
- What can get rid of age spots? (American Academy of Dermatology)
- Sunscreen FAQs (American Academy of Dermatology)
- Melanoma: Signs and symptoms (American Academy of Dermatology)
- FDA works to protect consumers from potentially harmful OTC skin lightening products (U.S. Food and Drug Administration)
- Postinflammatory hyperpigmentation: a review of the epidemiology, clinical features, and treatment options in skin of color (Journal of Clinical and Aesthetic Dermatology, PMC)
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Analyze my skinSkinli gives education about skin and is not a doctor. It cannot tell a harmless dark spot from skin cancer. Before you fade a spot, see a dermatologist for any spot that is new, changing, itching or bleeding.