Skin Concerns · July 16, 2026 · 5 min · By Damaris Okonjo
Melasma and Lasers: Why the Most Requested Fix Is Also the Easiest to Get Wrong
Melasma is one of the top complaints walking into Beverly Hills laser practices, and one of the few pigment conditions a laser can actually make worse. Here is what the mechanism says, what devices realistic clinicians reach for, and the questions to ask before anyone fires a shot.
Ask front desk staff at laser practices anywhere in the 90210 corridor what patients request most in summer and fall, and melasma is reliably near the top of the list. The condition, a patchy brown or gray-brown pigmentation that usually settles across the cheeks, forehead, and upper lip, is common in the sun-heavy Southern California climate and disproportionately affects women and patients with medium to deeper skin tones. The frustrating part is that the thing patients most want, a laser that simply erases it, does not exist. Worse, the wrong laser at the wrong setting can deepen it.
The myth: melasma is just extra pigment, so blast the pigment. This is intuitive and wrong. Sunspots, or solar lentigines, are relatively stable deposits of melanin that a pigment-targeting laser can break apart with good long-term results. Melasma is different. It is a dynamic condition driven by overactive melanocytes, the pigment-producing cells, which are being continuously stimulated by ultraviolet light, visible light, heat, and hormones. Recent research also implicates the skin's vasculature and fibroblast signaling, meaning melasma behaves less like a stain and more like an ongoing inflammatory process. Destroy the visible pigment without addressing the stimulation and the melanocytes simply refill the area, sometimes darker than before. That rebound is called post-inflammatory hyperpigmentation, and it is the single most common complication reported when aggressive lasers are used on melasma. For an independent overview, see Melasma and pigmentation: diagnosis and treatment.
Why heat is the enemy. Most cosmetic lasers work through selective photothermolysis, delivering energy that a target chromophore, in this case melanin, absorbs and converts to heat. In melasma, heat itself is a trigger. Melanocytes in melasma-prone skin respond to thermal injury by upregulating pigment production. This is why high-fluence Q-switched lasers, intense pulsed light at aggressive settings, and fully ablative resurfacing lasers have historically produced disappointing or paradoxical results in melasma patients, particularly Fitzpatrick skin types III to VI.
What experienced clinicians actually use. When lasers are used at all for melasma, the modern approach favors low energy and gradual clearance. The most cited protocol is low-fluence 1064 nm Q-switched Nd:YAG, sometimes called laser toning, delivered in multiple sessions at energies deliberately too low to cause visible whitening of the skin. The mechanism is subcellular: the pulse fractures melanosomes, the pigment packets inside cells, without killing the melanocyte or generating enough heat to provoke rebound. Picosecond lasers at 1064 nm and 755 nm operate on a similar logic with even shorter pulses, relying more on photoacoustic shattering than heat. Non-ablative fractional lasers in the 1550 to 1927 nm range are another option, creating microscopic columns of injury that shuttle pigment out through the healing process. All of these carry rebound risk if pushed too hard, which is why conservative settings and long intervals between sessions matter more than the brand name on the device.
Lasers are the adjunct, not the foundation. Dermatology literature is consistent on this point. First-line melasma care is topical: prescription hydroquinone or non-hydroquinone lighteners such as tranexamic acid, azelaic acid, and cysteamine, often combined with a retinoid. Oral tranexamic acid has strong evidence for stubborn cases under physician supervision. Rigorous photoprotection is non-negotiable, and for melasma that means tinted mineral sunscreen containing iron oxides, because visible light, not just UV, drives the pigmentation. A laser series performed without this foundation is expensive maintenance on a problem that keeps regenerating.
Questions worth asking at a Beverly Hills consultation. First, ask whether the practice uses a Wood's lamp or similar assessment to gauge pigment depth, since dermal-heavy melasma responds less predictably. Second, ask what the plan is if pigment darkens after a session, because a credible answer involves pausing treatment and reinforcing topicals, not escalating energy. Third, ask about pretreatment: many careful practitioners prime the skin with lightening agents for several weeks before any laser to quiet melanocytes. Fourth, ask what percentage improvement is realistic. Honest answers tend to land in the range of partial clearance with maintenance, not permanent erasure. Anyone promising complete, one-session removal of melasma is describing a condition other than melasma.
The bottom line. Melasma is a chronic, relapsing condition, closer in behavior to rosacea than to a sunspot. Lasers have a legitimate but supporting role, used at gentle settings, layered on top of topicals and strict photoprotection, and monitored closely for rebound. In a market as device-saturated as Beverly Hills, the differentiator is not who owns the newest platform. It is who understands that in melasma, restraint is the treatment.
Related reading: Can Laser Make Melasma Worse? A Myth Check.