Pigmentation & Melasma
Before choosing a treatment for brown patches, the first job is telling them apart. A sun spot is a sharply edged freckle-like mark that builds with years of UV exposure. Melasma is a symmetrical, blotchy patch, often on the cheeks, forehead and upper lip, driven by hormones, heat and light. Post-inflammatory marks follow a pimple, rash or injury and sit where the skin was irritated. Each behaves differently, so the category matters more than the device.
Common causes
- Cumulative sun exposure produces sun spots that keep multiplying without sunscreen
- Hormonal shifts from pregnancy, contraceptives or other hormone therapy can set off melasma
- Heat and visible light can keep melasma active, even in people who avoid direct sun
- Inflammation from acne, friction or procedures can leave post-inflammatory darkening, more visibly in deeper skin tones
- Some photosensitizing medicines and cosmetics can leave uneven marks
How doctors usually approach it
- Sun spots: light and laser families
- Well-defined spots tend to respond to intense pulsed light or picosecond lasers, which break up pigment clusters. They are usually the most predictable of the three, though new spots return without sun protection.
- Melasma: low-energy and cautious plans
- Melasma is sensitive to heat. Low-fluence toning, gentle peels and prescription topicals are commonly discussed, with the aim of calming it rather than clearing it fully. Aggressive settings can trigger rebound darkening, so a conservative course is typical.
- Post-inflammatory marks: time and gentle renewal
- These often fade by themselves over months. Mild peels and brightening topicals can speed this up, while treating the original inflammation prevents new marks.
- Rejuvenation boosters as support
- Polynucleotide-type skin boosters are sometimes offered to improve overall tone and skin quality around pigment care, but they are not pigment treatments on their own.
- What does not help
- Facials with friction, strong scrubs, tanning and repeated high-heat treatments tend to worsen melasma. Whitening injections and infusions have no reliable evidence for pigment.
Treatments often discussed
Matching pigment to the right treatment family
The practical question is depth and pattern. Sharp, scattered spots point toward light and laser fragmentation. A diffuse, symmetrical haze points toward melasma, where less is more. A mark that appeared after a pimple points toward waiting, protecting and gentle renewal. A skin analysis under UV light can reveal whether the pigment is on the surface or hidden deeper, which changes the plan.
Mixed pictures are common. Many people have sun spots and melasma together, and a laser setting that suits one can aggravate the other. That is why a doctor may treat the two in separate stages, or leave one alone.
Whatever the category, sun protection is the shared thread. Without daily sunscreen and shade, results fade and melasma tends to return.
Pigmentation & Melasma: common questions
Can melasma be cleared for good?
It is generally managed rather than cleared for good. It can fade considerably, and it can return with sun, heat or hormonal change, so maintenance is part of the plan.
Why did my patches get darker after a laser?
Heat or inflammation can stimulate pigment cells, particularly in melasma and in deeper skin tones. Tell the doctor about any past reaction, and expect a gentler setting next time.
Do I need to stop treatment in summer?
Plans are often adjusted, since tanned skin raises the risk of side effects with lasers and light devices. Your doctor will advise on timing.
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