By Tammy Napoli, Master Aesthetician | SkinHealth Studios, Palm Beach Gardens
After 18 years of treating pigmentation in plastic surgery and dermatology settings, the most common thing I hear from melasma clients is this: "I wear sunscreen every single day, and it still keeps getting darker."
They're not doing anything wrong. Their sunscreen just isn't designed for melasma. In South Florida, where we live in year-round high-intensity light, that gap matters more than almost anywhere else in the country.
Melasma isn't just a UV problem
Most people think of sun damage as a UV issue. But UV makes up only a small slice of sunlight. Roughly 40 to 45 percent of the sun's energy reaching your skin is visible light, including high-energy blue-violet light.
Research has shown that blue-violet light around 415 nanometers can trigger pigmentation that lasts up to three months in medium skin tones. In deeper skin tones, visible light produced darker and longer-lasting pigment than UVA1. For melasma, which is already a hyper-reactive pigment condition, that's a significant trigger.
Your pigment cells can sense light
In 2018, researchers found that melanocytes contain a light-sensing receptor called Opsin-3. When blue light activates it, the cell increases melanin production. In other words, your pigment cells respond to light directly, not just to burns or UV damage. That's why melasma can darken without a single sunburn.
What about phones and screens?
This is where a lot of online content gets it wrong. Screens do emit blue light, but at a tiny fraction of what the sun delivers. Current research suggests normal device use is a minor factor. The real exposure is daylight: driving with the sun through your windshield, working next to a bright window, or sitting on a shaded patio that still gets bright reflected light. Glass blocks UVB, but visible light passes right through.
Why midlife women see melasma flare
Melasma is strongly influenced by hormones. Shifts in estrogen and progesterone, whether from pregnancy, birth control, perimenopause, or hormone therapy, can make melanocytes more sensitive. Many women in their 40s and 50s are surprised to see melasma appear or worsen for the first time. Hormones prime the skin; light triggers the pigment.
The protection most people are missing
SPF only measures protection against UVB. A high SPF can still offer little protection against visible light. The ingredient that changes this is iron oxide, the pigment that gives tinted sunscreens their color. Clinical studies have found that tinted, iron-oxide sunscreens reduce melasma relapse more effectively than UV-only formulas.
My non-negotiables for melasma clients: a tinted mineral sunscreen with iron oxides every morning, reapplication every two hours outdoors, a wide-brim hat, and minimizing heat exposure, since heat can worsen melasma too.
How we treat melasma at SkinHealth Studios
Melasma is chronic. It can be controlled, but it requires a strategy, not a single treatment. Aggressive heat-based treatments can make it worse, which is why melasma needs a provider who understands pigment biology.
At SkinHealth Studios, we build phased melasma protocols that combine gentle, pigment-safe resurfacing like LaseMD Ultra, targeted brightening skincare, regenerative support, and a daily protection plan tailored to your skin and hormonal stage. Every protocol is medically supervised and customized. Because melasma has hormonal roots, we also look at the bigger picture of what's happening in your body, not just on your face.
Ready to finally get ahead of your melasma?
If you're in Palm Beach Gardens, Jupiter, Juno Beach, North Palm Beach, or anywhere in Palm Beach County, book a melasma consultation and let's build a plan that actually holds.
📍 SkinHealth Studios, 11380 Prosperity Farms Rd, Ste 110A, Palm Beach Gardens, FL 📞 561-510-3322