They can look alike at a glance, but they behave very differently — and treating one like the other can make things worse instead of better. Here's how to tell them apart.
Melasma and sun damage are both forms of hyperpigmentation, and they often get treated interchangeably by patients — but clinically, they're different conditions with different causes, different depths, and different treatment requirements. Getting this wrong isn't just a missed opportunity for better results; heat-based treatment of melasma specifically can make it worse.
Sun damage is relatively straightforward to treat — most laser modalities, including the ReVive Thulium laser, work well on it because it's a surface-level, single-cause type of pigment.
Melasma is more complicated. Because heat is a known trigger for melasma flares, aggressive or heat-generating treatments can inadvertently worsen it rather than improve it. This is why PicoLazer, with its low-heat photoacoustic mechanism, is generally the preferred approach for melasma — it treats the pigment without triggering the response that makes melasma so notoriously stubborn.
It's common to have areas of both conditions at once — melasma centrally on the face, with sun spots scattered elsewhere. In these cases, treating them as though they're the same thing rarely produces the best result. The Pigment Protocol was designed for exactly this kind of mixed presentation, combining PicoLazer and ReVive Thulium to address both concerns appropriately rather than applying one treatment to everything.
Getting the diagnosis right matters more than people realize. I've seen patients frustrated after a treatment that actually worsened their melasma, simply because it wasn't identified as melasma in the first place. A proper assessment before treatment isn't a formality — it changes the entire plan.
What is the difference between melasma and sun damage?
Melasma is a hormonally influenced condition that typically appears as symmetric, gray-brown patches on the cheeks, forehead, or upper lip. Sun damage, including sun spots and solar lentigos, appears as flat brown spots caused directly by UV exposure and tends to be more randomly distributed and asymmetric.
Can melasma and sun damage occur at the same time?
Yes, and this is common. Many patients have both, since sun exposure can worsen existing melasma and contribute to separate sun spots. Distinguishing between the two areas is important because they may need different treatment approaches.
Why does it matter which one I have?
Melasma responds poorly to heat-based treatments, which can trigger flare-ups, and generally needs a gentler, low-heat approach like PicoLazer. Sun damage is more straightforward to treat and often responds well to surface-level lasers like ReVive Thulium. Treating melasma with the wrong modality can make it worse.
Does melasma go away permanently?
Melasma tends to be a chronic, recurring condition influenced by hormones, sun exposure, and heat. It can be significantly improved with appropriate treatment, but ongoing maintenance and diligent sun protection are usually necessary to prevent recurrence.
How can I tell for sure which one I have?
A clinical exam, sometimes including a Wood's lamp assessment, is the most reliable way to distinguish melasma from sun damage. Self-diagnosis based on appearance alone can be misleading since the two can look similar, especially when they overlap.
Dr. Mortazavi will assess your pigment and identify the actual cause before recommending treatment.