Melasma is a common, harmless pigment condition that causes brown or grey-brown patches, usually on the cheeks, forehead, upper lip and nose. It is driven by a mix of sun and visible light exposure, hormones (pregnancy, birth-control pills and similar), genetics and sometimes heat. Melasma treatment generally means strict sun and light protection, prescription topicals chosen by a dermatologist, gentle supportive skincare and, in some cases, procedures. It is manageable, but it often returns, so the aim is control rather than a one-time fix.
If you have noticed a mask-like patch of darker skin and are wondering what caused it and what really helps, this guide walks through the causes, how a diagnosis is made, the treatment options dermatologists use, what you can do at home, and how to avoid the common mistakes that make melasma stubborn.
Key Takeaways
- Melasma is a pigment condition, not a disease of the skin’s health. It is not contagious or cancerous.
- Triggers include sun exposure, visible light and heat, hormonal changes, some medications and family history. It affects women far more often than men.
- Daily broad-spectrum sunscreen of SPF 30 or higher, plus a hat and shade, is the foundation. Tinted mineral sunscreens with iron oxides are often suggested.
- Prescription options such as hydroquinone, tretinoin combinations, tranexamic acid or procedures should be guided by a dermatologist.
- Realistic timelines are 3 to 12 months, and maintenance is usually needed.
- Aggressive treatments, harsh peels and unregulated “lightening” creams can make pigment worse.
What Melasma Looks Like
Melasma typically appears as symmetrical, irregular patches in a pattern on the face: across the cheeks, over the bridge of the nose, on the forehead, above the lip, and sometimes on the jawline. Less commonly it appears on the forearms or neck. The colour ranges from light tan to deep brown or blue-grey, depending on how deep the pigment sits in the skin.
It tends to show up in women in their twenties to forties and is more common in people with medium to deeper skin tones, in tropical and sunny climates, and in people with a family history. It does not hurt or itch. If a patch is raised, painful, bleeding, quickly changing or only on one side of the face, see a doctor to rule out other conditions.
What Causes Melasma
The exact cause is not fully understood, but the pigment cells (melanocytes) in affected areas are overactive and produce extra melanin. Several factors work together.
Sunlight and visible light
Ultraviolet light is the best-known trigger. Newer research also points to visible light, particularly the blue-violet range, which regular sunscreens do not block well unless they contain iron oxides or other pigments. That is why a person can use sunscreen and still see melasma persist.
Hormones
Pregnancy is a classic trigger, which is why melasma is sometimes called the “mask of pregnancy.” Combined hormonal contraceptives and hormone therapy can also trigger it in some people. Do not stop prescribed hormones on your own. Discuss options with the prescriber if you suspect they are involved.
Heat and inflammation
Heat from cooking, hot yoga, saunas or sitting by a hot oven can worsen melasma in some people. Irritating skincare, harsh scrubs and aggressive procedures can inflame skin and set off more pigment.
Genetics and skin tone
Many people with melasma have a relative with it. Skin tones in the medium to deep range have more active pigment cells and are more prone to it, as well as to dark marks after irritation.
Medications and conditions
Some medicines make skin more sensitive to light or can influence pigment. Thyroid conditions have been associated with melasma in some studies. If you suspect a medicine is involved, ask your doctor or pharmacist; do not stop it yourself. If you have symptoms such as tiredness or irregular periods, see our overview of thyroid problem signs.
How Melasma Is Diagnosed
A dermatologist can usually diagnose melasma by looking at your face and discussing your history. They may use a handheld light (a Wood’s lamp) or a dermatoscope to see how deep the pigment lies, and occasionally a small skin sample to rule out other conditions. Epidermal melasma sits near the surface and tends to respond better to treatment; dermal melasma sits deeper and is harder to shift. Many people have a mix.
Other conditions can look similar, including sun spots, post-inflammatory pigment from acne, and a reaction to products. Our overview of hyperpigmentation and dark spots shows how these differ.
Melasma Treatment Options at a Glance
| Approach | Examples | Who prescribes or performs | Notes |
|---|---|---|---|
| Sun and light protection | Broad-spectrum SPF 30+, tinted mineral sunscreen with iron oxides, hat, shade | You | Essential every day; without it other treatments often fail |
| Prescription topicals | Hydroquinone, tretinoin, triple-combination creams | Doctor | Usually used in cycles; need monitoring for irritation |
| Non-hydroquinone topicals | Azelaic acid, kojic acid, vitamin C, niacinamide | Over the counter or doctor | Milder; slower |
| Oral medicine | Tranexamic acid | Dermatologist only | Considered when topicals are not enough; not suitable for people with clotting history |
| Procedures | Gentle chemical peels, certain lasers or light treatments, microneedling | Board-certified dermatologist | Can worsen melasma if done too aggressively; best as add-ons |
Sun protection is the treatment that makes the others work
The American Academy of Dermatology emphasises broad-spectrum sunscreen of SPF 30 or higher, wide-brimmed hats and shade. Because visible light matters, dermatologists often suggest sunscreens that contain zinc oxide, titanium dioxide or iron oxide, and tinted products can reduce the white cast on deeper skin. Apply generously and reapply every two hours outdoors; repeated unprotected exposure keeps pigment coming back.
Prescription topicals
Hydroquinone is a long-established pigment-reducing ingredient, available by prescription in many places, and is usually used for a limited time under medical supervision because of the risk of irritation and, rarely, paradoxical darkening with prolonged misuse. Tretinoin helps speed up skin turnover. Triple-combination creams combine several ingredients and are only used under supervision. Do not buy unregulated “whitening” creams from markets or online sellers; some contain undeclared steroids or mercury, which can damage skin and health. Check with a dermatologist or pharmacist.
Gentler ingredients
Azelaic acid, kojic acid, vitamin C and niacinamide are used for milder melasma or as maintenance. They tend to be better tolerated but slower. See our guides to vitamin C for dark spots for what to look for in a formula.
Oral tranexamic acid
Tranexamic acid is a tablet normally used to reduce heavy bleeding. Dermatologists sometimes prescribe low doses for stubborn melasma. It is not suitable for everyone, particularly anyone with a history of blood clots, and requires a conversation and monitoring. This should only ever be started and stopped by a doctor.
Procedures
Superficial chemical peels, certain lasers and light devices, and microneedling can help in selected cases. Melasma is sensitive: heat and inflammation from the wrong device or settings can trigger rebound pigment, especially in deeper skin tones. Choose a board-certified dermatologist with experience in melasma, and ask about risks and expected course.
A Sensible Home Routine
Here is an illustrative routine that supports prescribed treatment. Ask your doctor to adjust it.
| Time | Step | Why |
|---|---|---|
| Morning | Gentle cleanser | Avoid scrubbing or hot water |
| Morning | Antioxidant serum (such as vitamin C), if tolerated | Supports brightening and protection |
| Morning | Moisturiser | Supports the skin barrier |
| Morning | Tinted mineral sunscreen, SPF 30+ | Blocks UV and visible light |
| Evening | Gentle cleanser, then prescribed treatment as directed | Active step; keep consistent |
| Evening | Moisturiser | Reduces dryness from actives |
Keep the barrier calm. If your skin is stinging, flaking or red, pause actives and read our guide on repairing the skin barrier. Inflamed skin makes melasma worse.
Lifestyle Habits That Support Melasma Treatment
- Wear a wide-brimmed hat and sunglasses outdoors, even for short trips.
- Avoid heat on the face where possible: long hot showers, steam and sitting close to a stove.
- Sit away from windows when you can; visible light and UVA pass through glass.
- Do not pick, scrub or use home remedies such as lemon juice or baking soda. They irritate the skin and can worsen pigment.
- Discuss hormone medicines with your prescriber if melasma appeared after starting them, without stopping on your own.
- Keep makeup in your toolkit. Apply treatment first, then sunscreen, then camouflage makeup, which can improve confidence while you wait for results.
Melasma and Pregnancy
Many people notice melasma during pregnancy, and for some it fades afterward. Several treatments, including hydroquinone, tretinoin and oral tranexamic acid, are avoided in pregnancy and breastfeeding. During this time, the safest priorities are mineral sunscreen, shade, and gentle products your obstetrician approves. Azelaic acid is commonly considered a safer topical option, but confirm with your care team first.
Melasma Treatment Timelines, Costs and Expectations
Melasma changes slowly. Dermatology guidance suggests results often take 3 to 12 months, and longer for long-standing or deeper pigment. It may fade on its own if the trigger is removed, but it can also last for years and relapse after sun exposure. Maintenance with sunscreen and a mild brightening routine is common.
Costs vary widely. Over-the-counter sunscreens and serums range from inexpensive to premium. Prescription creams are modest to moderate in price depending on insurance. Procedures cost more and are often not covered by insurance, because melasma treatment is considered cosmetic. Ask for a written plan and cost estimate before starting.
Questions to Bring to Your Dermatology Appointment
Appointments go faster, and plans fit better, when you arrive prepared. Take a list of every skincare product you use, including cleansers and home remedies, plus all medicines and supplements. Note when the patches first appeared and whether they coincided with a pregnancy, a new contraceptive, a move to a sunnier place or a stressful period. Bring a few photos from before it started if you have them.
- Is this melasma, or could it be something else?
- Is my pigment shallow or deep, and how does that change the plan?
- Which sunscreen type do you suggest for my skin tone and lifestyle?
- How long should I use each treatment, and what are the signs to stop?
- Are any of my current medicines or hormones relevant, and who should I discuss them with?
- What is the likely cost over six months, and which parts are optional?
Be honest about what you are willing to do. A plan that needs three products twice a day will fail if your real life allows one product and a hat. A dermatologist can simplify the plan to match what you will actually follow.
Frequently Asked Questions
Will melasma go away on its own?
Sometimes, especially when it was triggered by pregnancy or a medicine that has been stopped. In other cases it persists or recurs for years.
Is melasma dangerous?
No, melasma itself is not harmful. A dermatologist should check any patch that is raised, bleeding, changing quickly or one-sided.
Can sunscreen alone fix melasma?
It prevents worsening and supports other treatments, and can lead to some fading, but most people need more than sunscreen to see substantial improvement.
Why did my melasma get worse after a facial or laser?
Heat and inflammation can trigger pigment cells. This is why melasma procedures should be done by experienced professionals, with conservative settings.
Do home remedies like lemon or turmeric work?
There is no good evidence for lemon, baking soda or similar remedies, and they can burn skin and worsen pigment. Stick to gentle, tested products.
Can men get melasma?
Yes, though it is much less common than in women.
Can I use hydroquinone long term?
It is usually used in limited cycles under supervision. Ask your dermatologist about the right duration and breaks.
How soon will I see improvement?
Early changes may show around 8 to 12 weeks, with fuller results taking several months. Photos taken monthly in the same light help you track change.
The Bottom Line
Melasma treatment works best as a long-term partnership between daily light protection, a plan from a dermatologist and patience. Prioritise a tinted mineral sunscreen and a hat, keep your skin calm, avoid harsh remedies and unregulated creams, and ask a dermatologist about prescription and procedural options. You may not be able to remove melasma for good, but most people can reduce its appearance and keep it under control.
This article is for general informational purposes only and does not replace advice from a qualified healthcare professional. Individual needs differ, and costs, rules and guidelines change — please check with a doctor, pharmacist, or the relevant official source for guidance specific to your situation.
