DOCT’OYA • EXPERT ADVICE

Dark spots on Black skin: why won’t they fade?

Have your breakouts cleared up, but the dark spots remain? Brown spots on the cheeks, post-acne marks on the forehead, dark marks on the chin, stubborn spots that refuse to fade… Even when using a dark-spot serum, new marks can still appear.

On Black, brown or mixed-race skin, some spots persist when inflammation recurs, the skin becomes irritated or sun protection is insufficient. The answer is not to “strip” the skin further: it is to understand what caused the mark, protect the skin barrier and follow a consistent routine.

Written by the DOCT’OYA team – IN’OYA Laboratory • Reviewed by Olivier Triqueneaux, pharmacist • Updated October 8, 2026

Already have a routine? Discover My MEL’OYA® Dark Spot Serum →

The 5 mistakes at a glance

Why can dark spots last on Black or brown skin?

Melanin is the natural pigment that contributes to skin colour. After a pimple, irritation, bite or scratch, inflammation can locally stimulate pigmentation. A brown or dark mark may remain after the lesion has healed: this is post-inflammatory hyperpigmentation (PIH).

This can affect small individual spots or larger areas. Size and colour alone are not enough to make a diagnosis. Treating a mark without preventing new inflammation often means fading old spots while new ones appear.

How to identify different types of dark spots: read our in-depth guide to melasma, post-inflammatory marks and solar lentigines

Explore the science: understand the role of melanin in pigmentation.

Superficial or deep pigmentation: why fading times vary

Not all marks sit at the same depth. When pigment is mainly in the epidermis, the outermost layer, the spot is often light to dark brown and may gradually fade as the skin renews itself. When pigment lies deeper in the dermis, the mark may look greyish or bluish and can take much longer to fade. Some spots involve both layers.

In practice, visible fading often takes several months, sometimes more than a year, and may not be complete. A dermatologist can examine the spot, sometimes using a lamp or dermoscope, to assess its depth and guide treatment. No timeline can be guaranteed.

Source: DermNet — Postinflammatory hyperpigmentation

5 mistakes that keep dark spots going

1. Skipping sun protection

Melanin provides some natural protection from sunlight, but it does not replace suitable sunscreen. UV rays can intensify some spots. Visible sunlight can also worsen melasma and other pigmentation, particularly in darker skin tones. For some people, a tinted sunscreen containing iron oxides may provide additional protection against visible light. An untinted SPF 50 UVA/UVB sunscreen does not, by itself, guarantee this specific protection.

Read more: SPF 50 and persistent dark spots: why sun protection alone is not enough.

2. Picking, scratching or touching pimples

“My pimples are gone, but the marks remain” is one of the most common descriptions of post-acne marks. Squeezing or scratching blemishes prolongs inflammation, which can make dark marks more noticeable. These flat marks are not necessarily indented or raised scars: the two issues require different approaches. After shaving or hair removal, ingrown hairs and razor bumps can also leave dark marks on the chin, neck, underarms or legs. Avoid digging them out by scratching.

Read more: approaches to acne and dark spots.

3. Over-exfoliating or stripping the skin

A dark spot can make you want to scrub harder. However, abrasive scrubs, repeated peels, poorly combined products or unsuitable depigmenting treatments can irritate the skin. Significant irritation, or even a chemical burn, can leave a new pigmented mark after healing. Home remedies using pure lemon juice or baking soda, sometimes promoted as “skin-lightening” solutions, are not reliable treatments for dark spots: they can irritate the skin and make marks worse.

Read also: scrubs, acids and pimples: mistakes to avoid.

4. Changing your routine too often

Does your dark-spot serum seem not to be working? Before buying a new product, check how long you have been using it, how often you apply it, and whether new pimples or irritation continue to appear. Constantly changing your routine makes results difficult to assess and may increase irritation.

A recent mark does not always fade at the same rate as an older or more stubborn one. Improvement may take weeks to several months, depending on the cause and depth of the pigmentation. If in doubt, seek advice rather than layering more active ingredients.

For reference: Assurance Maladie — acne treatment and the importance of consistency.

5. Neglecting moisturising

An effective dark-spot routine does not rely on a corrective ingredient alone. Skin that feels tight, stings or becomes uncomfortable may tolerate skincare less well. Moisturising does not directly erase a spot; it mainly helps maintain a healthy skin barrier and a routine you can sustain over time. Even if your face looks shiny, oily skin can be dehydrated: choose a suitable lightweight texture rather than automatically skipping moisturiser.

Pimples, mosquito bites, scratches and burns: why can they leave a mark?

Pigmented marks do not come only from acne. A mosquito bite, scratch, scrape, cut, friction, superficial burn or sometimes surgery can leave a darker area after healing. Eczema and certain forms of dermatitis, especially when itchy and scratched, can also lead to brown or dark marks. A flat spot may be post-inflammatory hyperpigmentation; a raised scar, keloid or area that has become lighter involves different processes.

Never apply a dark-spot product to an open wound or an unhealed burn. After surgery or a burn, ask a healthcare professional before using corrective skincare. Cosmetic products do not treat keloids or surgical scars.

To better identify marks following eczema, burns, ingrown hairs or injuries, read our guide to dermatology consultations for Black and mixed-race skin.

What routine should you follow when dark spots do not fade?

CLEANSE → CORRECT → MOISTURISE → PROTECT

In the morning: cleanse gently, moisturise if needed, then apply suitable sun protection. In the evening: cleanse, apply a targeted corrective product according to its instructions, then moisturise as needed. If acne is active, also address the blemishes that are causing new marks.

For older spots, post-acne marks or uneven skin tone, prioritise a well-tolerated formula and a routine you can realistically maintain.

For the “correct” step: Mon Sérum anti-taches MEL’OYA® • for the “protect” step: Mon Fluide Solaire SPF 50 SUN’OYA®

Read also: how to cleanse Black skin without irritating it.

Which ingredients do dermatology sources mention for dark spots?

Dermatology resources mention several types of ingredients for managing hyperpigmentation, including niacinamide, azelaic acid, vitamin C and retinoids. Their usefulness, dosage and tolerability depend on the type of spot and skin tone; some require a prescription or medical advice.

On melanin-rich skin, a poorly tolerated or incorrectly combined ingredient can cause irritation and leave a new mark. Introduce ingredients one at a time, avoid combining them without advice, and always read the chosen product’s ingredients and instructions. This information is general and is not an individual recommendation or a promise of results.

Read more: American Academy of Dermatology — How to fade dark spots

Dark-spot care, skin-lightening or depigmenting products: what is the difference?

A dark-spot product aims to reduce the appearance of darker areas for a more even-looking complexion. “Skin-lightening” is a broader term: depending on the product, it may refer to targeting localised spots or overall pigmentation. “Depigmenting” refers to an action intended to reduce pigmentation. These terms alone do not indicate a formula’s effectiveness or safety. IN’OYA’s cosmetic goal is to reduce the appearance of spots while respecting the skin’s natural tone.

Hydroquinone: is it a solution for dark spots?

Hydroquinone is a depigmenting substance. It is not permitted in skin-lightening cosmetics marketed in the European Union. Some illegal products contain it and may cause serious skin effects. Do not use it in a cream purchased without medical advice, especially to “strip away” stubborn spots. For persistent pigmentation, seek a dermatologist’s advice; any medical treatments are distinct from cosmetics.

For information about regulations: DGCCRF — skin-lightening products and prohibited substances.

Read our explainer: skin-lightening products, depigmentation and suitable alternatives.

Can a serum for lighter skin also suit Black skin, and vice versa?

Yes. Dark-spot care is not biologically restricted to one skin colour: some ingredients may suit different skin tones. However, not all formulas have been evaluated across the same phototypes. For melanin-rich skin, check the product’s tolerability, the type of spots it targets and which skin tones were represented in testing.

Conversely, a serum designed for darker phototypes may also suit lighter skin if its formula is appropriate. However, a study conducted on one phototype does not automatically demonstrate identical results on all others.

IN’OYA research: an approach focused on melanin

IN’OYA is developing its MEL’OYA® technology for pigmentation concerns in phototypes IV, V and VI. Its research focuses in particular on melanin, tyrosinase and TYRP1. The laboratory describes an innovation involving Ilex aquifolium, protected by European patent EP 3 765 161 B1, within a research environment that includes CNRS and Aix-Marseille University.

Find the results and patent: page Expertise & Brevets du laboratoire IN’OYA.

Mature Black skin: why do some dark spots persist after age 50?

After age 50, Black, brown or mixed-race skin may show a combination of old acne marks, uneven pigmentation and solar lentigines linked in part to cumulative sun exposure. Therefore, not every spot that appears with age is an “age spot”. Mature skin is often drier and less tolerant of harsh products, so prioritise a gentle routine, suitable moisturising and daily sun protection. A new spot or one that changes in appearance should be assessed by a healthcare professional.

Which dark-spot serum should you choose for Black, brown or mixed-race skin?

Rather than simply looking for the “best dark-spot serum”, choose a formula suited to your pigmentation concern, with documented tolerability and claims. The aim is to help reduce the appearance of marks and even out the complexion without changing your natural skin tone. A pigmented spot is not an indented scar, and not every type of spot can be addressed with cosmetic skincare.

Sun protection: the step that complements dark-spot care

Sun protection is part of a well-rounded dark-spot routine. IN’OYA presents Mon Fluide Solaire SPF 50 SUN’OYA® as high UVA/UVB protection designed for pigmented skin, without white cast. SPF helps limit UV exposure; it does not remove existing spots on its own.

Discover: Mon Fluide Solaire SPF 50 SUN’OYA®

When should you see a dermatologist?

Not all dark spots are simple post-acne marks. Seek medical advice if a spot appears without an obvious cause, grows, changes shape or colour, bleeds, itches persistently or becomes raised. Also seek advice for melasma, severe acne, burns, recent wounds or scars following surgery.

To prepare for an appointment: find a dermatologist experienced with Black, brown and mixed-race skin.

FAQ — your questions about dark spots and brown marks

Why do acne marks remain even after the acne has cleared?

They may be a form of post-inflammatory hyperpigmentation. The skin can retain a pigmented mark even after the pimple has healed. Avoid picking at blemishes and address active acne.

Why do new dark spots appear even when I use a serum?

New breakouts, friction, irritation or sun exposure can contribute to further marks. It is important to address the causes and check that your routine is well tolerated, rather than focusing only on existing spots.

How long does it take to fade older dark spots?

It depends on their cause, how long they have been present and how deeply the pigment sits. Some marks fade over several weeks; others take several months or even more than a year, or require medical advice. No single timeframe can be guaranteed.

Why do some spots look greyish and fade very slowly?

When pigment is deeper in the dermis, a mark may look greyish or bluish and take much longer to fade. A dermatologist can assess its depth and advise whether a cosmetic product is appropriate; cosmetic products cannot treat every type of mark.

Are small black spots and a large brown patch the same thing?

Not necessarily. Post-acne marks, melasma and solar lentigines can look different. Size alone cannot identify the cause; a large spot that changes should be examined.

What is melasma, or the “mask of pregnancy”?

Melasma often causes fairly symmetrical brown patches on the face. Hormones and sun exposure may play a role; it is not simply an acne mark. A dermatologist can confirm the cause of the pigmentation.

Can age spots appear on Black skin?

Yes. Solar lentigines, often called “age spots”, can also affect darker skin tones. They differ from marks left by pimples. Diagnosis depends on their appearance and how they change over time. See our guide to distinguishing melasma, post-acne marks and solar lentigines.

Can a dark spot present from birth be removed with a dark-spot serum?

Not necessarily. A mark present from birth or childhood may have a different cause from acquired hyperpigmentation. A cosmetic product should not be presented as a solution for birthmarks without a diagnosis.

Can a scratch, burn or surgery leave a dark mark?

Yes. After the skin heals, inflammation can leave a pigmented mark. However, a raised scar, a keloid or an area of lost pigmentation is not simply a dark spot. Seek medical advice if the lesion is recent or unusual.

Can a skin-lightening cream make dark spots disappear?

It depends on the ingredients and the product’s intended purpose. A cosmetic dark-spot product should not be expected to change the natural colour of the skin uniformly. Avoid non-compliant depigmenting creams and seek advice about unusual or persistent pigmentation.

Why do ingrown hairs and shaving leave dark marks?

Shaving and hair removal can cause ingrown hairs and small bumps. The resulting inflammation may leave a dark mark after healing, particularly on the chin, neck or bikini line. Reduce irritation and seek advice if the lesions recur frequently.

Do lemon juice or baking soda remove brown spots?

No. These home remedies have no proven dark-spot-fading benefit and may irritate the skin. Lemon juice can also trigger certain reactions when the skin is exposed to sunlight. If your skin is prone to marks, choose a well-tolerated routine and seek advice if the spots persist.

Is SPF 50 enough to make a dark spot disappear?

No. It helps limit the effects of UV rays that can worsen some types of pigmentation, but it does not remove an existing mark on its own. It complements a routine suited to the cause of the spot.

Dermatology sources for further reading

Post-inflammatory hyperpigmentation: DermNet — Postinflammatory hyperpigmentation

Dark spots on darker skin: American Academy of Dermatology — How to fade dark spots

Sun protection and visible light: American Academy of Dermatology — How to decode a sunscreen label