Melasma is a chronic pigmentation condition caused by an interplay of UV exposure, heat, and hormonal activity that overstimulates the pigment-producing cells in the skin, leading to patches of brown or gray-brown discoloration, most often on the face. It's treatable, but because multiple triggers are usually involved at once, effective management typically requires a layered approach rather than a single product or procedure.
Why melasma happens?
Melasma develops when melanocytes, the cells responsible for producing pigment, become overactive in specific areas of the skin. UV exposure is a major trigger, but melasma is distinct from ordinary sun spots because hormonal activity plays such a central role — it's especially common during pregnancy, with hormonal birth control, and during perimenopause, and it tends to run more prominently in patients with medium to deeper skin tones. Heat and visible light, not just UV rays, have also been shown to worsen melasma, which is part of why it can be so difficult to fully control even with diligent sunscreen use alone.
Why melasma is so persistent?
Unlike a typical sun spot, which reflects damage to a specific patch of skin, melasma reflects an underlying tendency in the melanocytes themselves to overreact to triggers. This means the pigment can return even after successful treatment if the underlying triggers — sun exposure, heat, hormonal changes — aren't consistently managed. This is why providers often describe melasma as "controlled" rather than "cured," even with excellent results.
What actually helps?
- Rigorous, daily sun protection: broad-spectrum SPF 30 or higher, reapplied consistently, plus a physical barrier like a hat during peak sun hours; mineral sunscreen with iron oxide is often recommended since iron oxide also helps block visible light, a known melasma trigger.
- Topical treatment: ingredients like hydroquinone, tranexamic acid, azelaic acid, and retinoids are commonly used, often in combination, to calm pigment production and gradually fade existing discoloration.
- In-office treatments: options like chemical peels and certain laser or light-based treatments can help, but must be selected carefully, since overly aggressive treatment can sometimes worsen melasma by triggering additional inflammation.
- Addressing hormonal triggers where possible: in some cases, discussing hormonal contributors with your provider is a relevant part of a complete plan.
Why the wrong treatment can make it worse?
Melasma responds differently to treatment than most other forms of pigmentation, and aggressive approaches — certain lasers, high-strength peels, or excessive exfoliation — can trigger inflammation that actually worsens melasma in some patients. This is why melasma treatment planning benefits from an experienced provider familiar with its specific behavior, rather than a generic pigmentation protocol.
How do you set realistic expectations?
With a consistent, well-matched plan, most patients see significant improvement in melasma's appearance, though ongoing maintenance, especially sun protection, is usually necessary to keep it controlled over time. Because melasma tends to flare with known triggers, being proactive during high-risk periods, like pregnancy, sunny seasons, or starting a new hormonal medication, can meaningfully reduce flare severity.
How do you build your plan?
If melasma has been resistant to over-the-counter products, a consultation can help identify which combination of topical treatment, in-office procedures, and daily habits will make the most difference for your specific pattern of pigmentation.