Melasma: Why It Happens, Why It Returns, and How to Manage

Written by Dimah Ghanem BSc., MSc.

Reviewed by Aesthetic Dr. Hala Mahfoud, Md, MRCOG, DipGum, MFSRH.

Living with Melasma can feel confusing and frustrating. One day it fades, the next it’s back, and it’s easy to feel like nothing truly works. The truth is, Melasma isn’t a simple pigmentation issue, and that’s why quick fixes often fail.

The encouraging part? New research and modern treatments have changed how we manage Melasma. Now, results are more achievable and predictable than ever.

In this blog, you will learn what happens in your skin and body when Melasma develops. You will also find out why it often comes back and which best evidence-based treatments can help you manage it well.

Summary:

• Melasma is a chronic pigmentation condition, not a simple surface dark spot. Hormones, light exposure, and overactive pigment cells trigger it, which is why it often returns.

• Melasma is different from regular hyper-pigmentation. It forms larger, symmetrical patches and affects deeper layers of the skin. This makes long-term management crucial.

• Sunlight and visible (blue) light are major triggers, even with brief exposure. Daily use of broad-spectrum, tinted SPF is one of the most important steps to control.

• The best treatment combines different methods. These include gentle lasers, peels, and medical-grade skincare. Strong treatments can often make Melasma worse.

• Consistency and maintenance matter more than quick fixes. Improvement is gradual, and ongoing care is key to preventing recurrence.

• Special situations like pregnancy require a protective approach, focusing on sun protection and gentle skincare until hormones stabilize.

What Is Melasma? And What The Differences between Melasma and Hyper-pigmentation?

Melasma is a chronic pigmentation condition that causes broad, uneven patches of darker skin, most commonly on the face. These patches usually appear on the cheeks, forehead, nose, and upper lip.

More common in women and people with medium to darker skin tones, men can develop Melasma as well. However, people often confuse Melasma with general hyper-pigmentation, but key differences are:

Hyper-pigmentation is an umbrella term that describes darkened areas of skin caused by excess melanin. It usually develops after skin injury or inflammation.

Common causes of hyper-pigmentation include:

• Sun damage.

• Burns or skin trauma.

• Inflammation or irritation, such as with acne breakouts. We call this post-inflammatory hyper-pigmentation, or PIH.

Hyper-pigmentation typically appears as small, localised spots and often fades over time with the right skincare.

Melasma, on the other hand:

• Does not require skin injury or inflammation to develop.

• Is strongly influenced by hormones and light exposure.

• Appears as larger, symmetrical patches.

• Involves pigment sitting deeper in the skin.

• Has a tendency to return, even after treatment

In simple words, Hyper-pigmentation can often be treated and resolved. Melasma needs ongoing care to stay under control.

How Does Melasma Develop In Your Body?

Melasma is not just a surface skin issue, it is the result of changes happening inside the skin and within the body. To understand Melasma, it helps first to know how normal skin colour works:

Normal Pigment Production:

Your skin contains special cells called pigment‑producing cells (melanocytes). Their job is to produce melanin, the pigment that gives your skin its natural color and helps protect it from sunlight.

Under normal conditions:

• Melanocytes produce melanin evenly.

• Pigment is distributed smoothly through the skin.

• Skin tone appears balance.

What Changes in Melasma?

In Melasma, melanocytes become overactive, overly sensitive, therefore produce excess melanin:

This happens because of a combination of internal and external triggers:

Hormonal signals: Hormonal changes are one of the strongest triggers for Melasma. Hormones such as oestrogen, progesterone, and melanocyte-stimulating hormone (MSH) directly stimulate melanocytes.

Oestrogen increases melanocyte activity and melanin synthesis, while progesterone further amplifies pigment production. High levels of melanocyte-stimulating hormone (MSH) cause the skin to darken. This happens as a protective response.

When these hormones fluctuate or rise, they create the perfect environment for excess pigmentation to develop. Particularly on sun-exposed areas of the face.

This explains why Melasma is commonly linked to:

• Pregnancy: Hormonal changes during pregnancy raise oestrogen, progesterone, and MSH levels. This often creates what we call it the “mask of pregnancy.”

  Pregnancy: Hormonal changes during pregnancy raise oestrogen, progesterone, and MSH levels. This often creates what we call it the “mask of pregnancy.”

• Oral contraceptives: Synthetic hormones can mimic pregnancy-like hormonal conditions, continuously stimulating melanocytes and triggering or worsening Melasma.

• Hormone replacement therapy (HRT): External hormone supplementation can reactivate pigment production, even years after Melasma has previously cleared.

Sunlight and visible light:

Ultraviolet (UV) radiation is a well-known cause of melanin production. New research shows that visible light, especially blue light from the sun, also worsens Melasma. Blue light penetrates deeper into the skin and stimulates melanocytes through different pathways than UV rays.

This effect is especially more visible in medium to darker skin tones, where melanocytes are more reactive. Visible light can still cause pigmentation, even if sunscreen is used incorrectly or does not have iron oxides. This makes Melasma harder to manage and more persistent.

Genetics: Melasma often runs in families, highlighting a strong genetic component. Some skin types are genetically made to have more sensitive melanocytes.

These cells react strongly to hormonal changes, sunlight, heat, and inflammation. But, if close family members have Melasma, you are more likely to get it too. This risk is higher even if you have good skincare routine.

Chronic stress and inflammation:

Chronic stress increases cortisol levels in the body, which can disrupt hormonal balance. Elevated cortisol also promotes low-grade inflammation in the skin, further activating melanocytes and worsening pigmentation disorders such as Melasma.

However, in Melasma, melanin does not spread evenly. It builds up in patches, often in the deeper layers of the skin. This makes Melasma harder to treat and more likely to come back.

This explains why Melasma best describes a chronic skin response where pigment cells remain on high alert. So even after treatment fades the pigment, the melanocytes:

• Remain sensitive

• React quickly to triggers like hormones, sunlight and other triggers mentioned above.

• Even small amounts of sun exposure can reactivate pigment

and that's also explains why Melasma improves with treatment but often comes back without ongoing care.

Top Treatments for Melasma in 2026

No single “best” treatment exists. The most effective approach combines several treatments tailored to your skin:

1. Gentle Laser Treatments

Modern, low‑energy lasers (such as ClearLift laser) are commonly used to manage Melasma.

These lasers:

• Break pigment into tiny particles

• Target deeper pigment safely

• Improve overall skin tone

Please note that aggressive lasers should be avoided. They can actually worsen Melasma, and we'll come back to this later.

2. Chemical and Herbal Peels

Peels help speed up skin renewal and gradually lift pigment toward the surface. Experts recommend using them alongside laser treatments. Peels such as the herbal Green Peel or chemical PRX T-33 peel are great options here.

3. Medical‑Grade Skincare

Topical treatments remain essential for long-term control and are often used alongside peels and laser treatments. Products containing ingredients such as:

• Tranexamic Acid: reduces pigment signalling.

• Azelaic Acid: calms inflammation and pigment.

• Niacinamide: strengthens the skin barrier.

• Vitamin C: helps brighten and protect.

• Iron Oxide/ Zinc Oxide/ Titanium Dioxide (in tinted SPF): protect against visible light.

4. Oral Tranexamic Acid (Doctor‑Supervised)

In some cases, doctors may prescribe oral tranexamic acid. Research shows it can greatly reduce stubborn Melasma when monitored closely (Risk for DVT or blood clots in the veins).

Treatments to AVOID for Melasma

Certain treatments may worsen Melasma or cause rebound pigmentation like:

• High‑heat or aggressive lasers: like ablative CO2 lasers.

• Over-exfoliation happens when you use strong glycolic or salicylic acid peels too often at home. It can also occur with frequent microdermabrasion or harsh scrubs.

• DIY chemical peels include things like concentrated lemon juice or vinegar. You can find unregulated "acid solutions" online. Some people buy homemade chemical peel kits, hoping they will lighten their skin overnight!

Please remember that Melasma responds best to gentle, consistent treatments, not harsh procedures. Always consult a qualified dermatologist or aesthetic professional for laser or peel treatments. Even seemingly “mild” at-home solutions can significantly worsen Melasma if not used properly.

Active Ingredients to AVOID for Melasma

Some ingredients can irritate the skin and trigger pigment flare‑ups:

• High‑strength retinoids (without guidance): like Tretinoin 0.1%, Tazarotene, prescription-strength retinol creams.

• Using strong acids too often can be harmful.

  This includes 40-50% glycolic acid peels, high-strength salicylic acid, and frequent lactic or TCA peels at home.

• Fragrance‑heavy products: like perfumed moisturizers, scented serums, body lotions with added fragrance.

• Alcohol‑based skincare: like toners with denatured alcohol, high-alcohol astringents, some “instant matte” creams.

For Melasma-prone skin, stick to gentle, non-irritating ingredients. Think soothing, brightening, and protective, rather than harsh or aggressive.

What to Expect from Melasma Treatment

Melasma treatment is a journey rather than a quick fix. Melasma is affected by hormones, light exposure, genetics, and inflammation. Because of this, improvement takes time and needs a long-term approach. You can expect:

• Gradual improvement happens over weeks to months. The pigment fades slowly as melanin production decreases. Existing pigment is also broken down. Results are progressive, not immediate.

• Ongoing maintenance treatments: Melasma is a chronic condition and can return if treatment is stopped. Maintenance helps keep pigment under control and prevents rebound darkening.

• Use sunscreen every day to protect your skin from the sun and visible light. This helps prevent flare-ups and keeps your results safe.

• Consistency for best results: Regular treatments and consistent skincare routines are key to long-term success.

Tracking your progress with photos taken in the same lighting and conditions is highly recommended. Changes in Melasma can be small and hard to see when you look in the mirror daily. However, side-by-side photos show improvements more clearly and can be very encouraging over time.

How to Prevent Melasma from Worsening

Daily habits make a major difference, consistency and protection are just as important as in-clinic treatments.

• Wear broad-spectrum sunscreen every day: Choose a sunscreen that protects against UVA, UVB, and visible light. Tinted sunscreens which include iron oxide, zinc oxide and titanium dioxide. These are especially effective, as they help block blue light, a known trigger for Melasma. Re-apply regularly when outdoors.

• Focus on hydration and barrier support: Well-hydrated skin is less reactive. Ingredients like niacinamide help reduce inflammation, strengthen the skin barrier, and support a brighter, more even skin tone.

• Limit sun and heat exposure. Avoid staying in the sun for too long. Seek shade when you can. Use protective items like hats or sunglasses.

• Manage stress levels: Chronic stress can worsen hormonal imbalance and inflammation, both of which contribute to Melasma flare-ups. Stress management supports overall skin health.

• Follow a gentle, consistent skincare routine: Avoid harsh exfoliation or aggressive treatments that can irritate the skin. A calm, well-structured routine helps prevent inflammation-induced pigmentation.

The Honest Bottom Line:

Melasma can be challenging, but you can manage it successfully with the right knowledge and the good treatment plan. Modern treatments and evidence-based skincare now make long-term improvement more achievable than ever.

We hope you found this blog useful. If you are unsure where to start, please book your skin complimentary consultation now. At Dr Hala Medical Aesthetic Clinic we will help answer your questions and provide expert advice and a treatment plan.

References:

1. Godse, K., Sarkar, R., Mysore, V., Shenoy, M. M., Chatterjee, M., Damisetty, R., Shah, S., Vedamurthy, M., Aurangabadkar, S., Srinivas, C., Ganjoo, A., Das, S., & Patil, A. (2023). Oral Tranexamic Acid for the Treatment of Melasma: Evidence and Experience-Based Consensus Statement from Indian Experts. Indian journal of dermatology, 68(2), 178–185. https://doi.org/10.4103/ijd.ijd_266_22.

2. Ogbechie-Godec, O. A., & Elbuluk, N. (2017). Melasma: an Up-to-Date Comprehensive Review. Dermatology and therapy, 7(3), 305–318. https://doi.org/10.1007/s13555-017-0194-1.

3. Li, L., Jiang, X., Tu, Y., Yang, Y., Zhang, X., Gu, H., & He, L. (2023). Impact of blue light on skin pigmentation in patients with melasma. Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI), 29(7), e13401. https://doi.org/10.1111/srt.13401.

4. Zhao, L., Fu, X., & Cheng, H. (2024). Prevention of Melasma During Pregnancy: Risk Factors and Photoprotection-Focused Strategies. Clinical, cosmetic and investigational dermatology, 17, 2301–2310. https://doi.org/10.2147/CCID.S488663.