By Olympia Morris, PA-C · Medically reviewed by Dr. Oliver Morris, Medical Director
If you live in Florida, you have earned some sun. The flat brown spots that show up on your cheeks, forehead, the backs of your hands, and your chest are a record of that time outside. Most people call them sun spots or age spots. The medical name is solar lentigines. They are harmless, but they can add years to how your skin reads, and the good news is they respond very well to treatment when you pick the right one.
This page walks through what causes these spots, how to tell them apart from melasma (which is a different problem that needs a different plan), when a spot should be looked at by a professional to rule out something serious, and which treatments actually fade brown spots. Written by the medical team at Olympia Aesthetics & Wellness in Palm Harbor, serving Clearwater, Dunedin, Tarpon Springs, and Tampa.
What causes sun spots and age spots
Sun spots are not really about age. They are about accumulated ultraviolet exposure. UV light signals the pigment-producing cells in your skin, the melanocytes, to make more melanin, and over years that pigment clusters into flat, well-defined brown patches. Research shows solar lentigines are strongly tied to sun exposure specifically, more so than freckles, which is why they land on the areas that catch the most light: face, hands, shoulders, upper chest.
They tend to appear from your 40s onward, which is where the “age spot” nickname comes from, but the real driver is cumulative sun. In a place like the Gulf Coast, that clock runs faster. A spot is usually tan to dark brown, has a clear border, sits flat against the skin, and does not itch or change much day to day.
Sun spots versus melasma: why the difference matters
This is the part people get wrong, and it changes the whole treatment plan.
Sun spots (solar lentigines) are discrete, sharply bordered brown spots caused mainly by UV exposure. They show up about equally in men and women. They live in the top layer of skin and respond beautifully to light-based treatment.
Melasma is a different pattern. It shows up as larger, blurrier patches, often symmetric across the cheeks, forehead, or upper lip. It is heavily influenced by hormones, seen far more often in women, and can flare during pregnancy or on birth control. Melasma reaches deeper and is prone to bouncing back, and here is the catch: the same aggressive heat and light that clears sun spots can actually make melasma worse.
So before we treat anything, we identify what you actually have. If your spots turn out to be melasma, the plan shifts toward gentle pigment control and strict sun protection rather than lasers. You can read more on our melasma education page.
Safety first: when a spot needs to be checked
Most brown spots are completely benign. But a small number of skin cancers, including a form of melanoma called lentigo maligna, can look a lot like an ordinary sun spot in the early stages. Even trained clinicians can find these hard to tell apart by eye, which is why suspicious lesions are confirmed by biopsy rather than assumption.
Use the ABCDE guide, and if a spot fits any of these, get it evaluated before any cosmetic treatment:
- Asymmetry: one half does not match the other
- Border: edges are irregular, ragged, or blurred
- Color: more than one shade, or uneven color within the spot
- Diameter: larger than a pencil eraser (about 6 mm)
- Evolving: changing in size, shape, color, or starting to itch or bleed
We do not treat, and no reputable provider should treat, a pigmented spot with a laser until anything worrying has been ruled out. When something looks off, we will tell you to see a dermatologist or your physician for evaluation first. That step protects you, and it is non-negotiable.
Treatment options that fade brown spots
For true sun spots, the workhorses are light-based. Because the pigment sits near the surface and is sharply defined, it absorbs light energy well and lifts away cleanly.
IPL and BBL (first-line for most people)
Intense pulsed light (IPL), often called a photofacial, and BBL BroadBand Light are the go-to treatments for sun spots. They send filtered light into the skin, the pigment absorbs it, the spots darken over a few days, then flake off as fresh skin comes up underneath. Most people need a short series for the best result. BBL also improves overall tone, redness, and texture at the same time, which is why it is so popular for sun-damaged Florida skin. See our BBL page and BBL HERO page for details.
HALO and MOXI laser
When there is deeper photodamage, uneven texture, or a mix of concerns, fractional lasers add another gear. HALO is a hybrid fractional laser that resurfaces while it targets pigment. MOXI is a gentler nonablative laser with less downtime, and it pairs well with BBL in the same visit for stubborn brown spots.
Chemical peels
A medical-grade chemical peel can lighten superficial sun spots and freshen tone, either on its own for milder cases or alongside light treatment. Peels are a reasonable option if you want to start conservatively.
Comparison at a glance
| Treatment | Best for | How it works | Typical downtime | Sessions |
|---|---|---|---|---|
| IPL / BBL photofacial | Discrete sun spots, overall tone and redness | Light absorbed by pigment; spots darken then flake off | Minimal, spots look like coffee grounds for a few days | Often a short series |
| HALO laser | Sun spots plus texture, deeper photodamage | Hybrid fractional resurfacing plus pigment targeting | A few days of redness and peeling | Fewer sessions, more per visit |
| MOXI laser | Early or maintenance pigment, lower-downtime option | Nonablative fractional light | Mild, brief | Series; pairs with BBL |
| Chemical peel | Superficial spots, budget-conscious start | Controlled exfoliation of pigmented surface cells | Light flaking for several days | Series |
Pricing for each of these lives on our pricing page so you can see current numbers before you book.
What results and downtime actually look like
With IPL or BBL, the treated spots do not vanish that afternoon. They darken, almost like tiny specks of pepper on the skin, over the first day or two, then slough off over roughly a week as new skin surfaces. You keep your normal routine through this. Most people are comfortable in makeup within a day or so. A series builds cumulative clearing, and many patients are surprised how much brighter their overall tone looks, not just the individual spots.
Lasers like HALO involve a few days of redness, a sandpapery feel, and light peeling before that lit-from-within result shows up. MOXI is gentler with less visible downtime. Peels give a few days of flaking.
Here is the honest part: none of these treatments stops new spots from forming. Florida sun keeps working on your skin every day you are outside. That is why daily protection is the treatment that makes every other treatment last.
Prevention and keeping results
- Wear a broad-spectrum SPF 30 or higher every single day, rain or shine, and reapply when you are outdoors.
- Add a wide-brim hat and UV-blocking sunglasses for time on the water or the golf course.
- Consider a topical with vitamin C or other antioxidants to support the skin between treatments.
- Book maintenance light treatments once or twice a year to stay ahead of new pigment.
Sun protection is not the boring afterthought here. It is the single most effective thing you can do to keep brown spots from coming back after you have paid to clear them.
Frequently asked questions
Are sun spots and age spots the same thing?
Yes. Sun spots, age spots, and liver spots are all common names for the same lesion, which medicine calls a solar lentigo. They are flat brown spots that collect on the face, chest, shoulders, and backs of the hands, and despite the nicknames they have nothing to do with age itself or the liver. The real cause is cumulative ultraviolet exposure, which is why they cluster on the areas that catch the most light, and why they show up earlier in sunny places like Florida than they do up north. The age label sticks because the record of sun takes decades to become visible, typically from the 40s onward. Whatever you call them, they respond to the same treatments: BBL and IPL first-line, fractional lasers or peels when the damage runs deeper.
How is a sun spot different from melasma?
Sun spots are small, flat, sharply bordered brown spots caused mainly by accumulated UV. They appear about equally in men and women, sit in the top layer of skin, and respond beautifully to light-based treatment. Melasma is larger and blurrier, usually symmetric patches across the cheeks, forehead, or upper lip. It is strongly influenced by hormones, far more common in women, and prone to returning after treatment. The distinction is not academic: the heat and light that clear sun spots can provoke melasma and leave you worse off than when you started. Since both often show up on the same sun-exposed Florida face, sorting out which you have, and sometimes it is both, is the first job of the consultation. The treatment plans that follow look completely different.
Can sun spots turn into skin cancer?
A true solar lentigo is benign and does not turn into cancer. The real concern runs the other direction: some early skin cancers, including a melanoma subtype called lentigo maligna, can look convincingly like an ordinary sun spot, and even trained eyes can struggle to tell them apart without a biopsy. That is why we screen before we treat. Use the ABCDE checklist: asymmetry, irregular borders, more than one color, diameter over six millimeters, or any evolution in size, shape, or sensation. A spot that fits any of those, or simply looks different from your others, should be evaluated by a dermatologist before anyone points a laser at it. Cosmetic treatment of a suspicious spot can hide a problem that needed diagnosing, so this safety step is non-negotiable at our practice.
Which treatment is best for sun spots?
For most people, light-based treatment with BBL or IPL is the first choice, because classic sun spots absorb light energy so well. The pigment darkens for a few days, flakes away, and overall tone brightens along with it, all with minimal downtime. When photodamage runs deeper, when texture is part of the concern, or when spots have resisted light treatment, fractional lasers earn their place: MOXI as the gentler option, HALO when you want a bigger reset in fewer visits. Chemical peels suit patients who prefer to start conservatively or whose skin tone makes light-based treatment riskier. The best answer really is individual, which is why we assess in person, confirm the spots are benign, rule out melasma masquerading as sun damage, and then match the device to your skin.
How many treatments will I need?
It depends on how many spots you have, how dark they are, and how deep the pigment sits. Isolated, well-defined sun spots sometimes clear meaningfully after a single BBL session. More typical is a short series, often two to three sessions spaced several weeks apart, which builds cumulative clearing and evens overall tone at the same time. Deeper or more stubborn photodamage may call for a fractional laser like MOXI or HALO instead of, or alongside, light-based treatment, and those follow their own session plans. Rather than quote a number sight unseen, we look at your skin at the consultation, often with VISIA imaging that shows the pigment sitting below the surface, and give you a specific plan with expected sessions and costs before you commit to anything.
Will the spots come back?
The specific spots we clear generally stay cleared, but your skin keeps making new ones wherever it gets UV exposure, and in Florida that exposure never really pauses. Solar lentigines are the accumulated record of years of sun, so treatment resets the record without changing the process that wrote it. Two habits protect the result: daily broad-spectrum SPF 30 or higher, reapplied when you are outdoors, and periodic maintenance treatments, often one or two BBL sessions a year, to catch new pigment while it is still faint. Patients who adopt both usually keep their skin dramatically clearer than before treatment for years. Patients who skip the sunscreen tend to be back within a couple of summers with a fresh crop, wondering whether the treatment wore off. It did not. The sun kept working.
Ready to fade your brown spots?
The first step is figuring out exactly what your spots are and matching them to the right treatment. Our team, under Medical Director Dr. Oliver Morris, with aesthetic procedures performed by Olympia Morris, PA-C, will look at your skin, flag anything that needs a closer look, and build a plan that fits your goals and your Florida lifestyle.
Book your consultation, or if you prefer to start from home, ask about our complimentary virtual consult. Serving Palm Harbor, Clearwater, Dunedin, Tarpon Springs, and Tampa. See more on our Clearwater med spa page and browse the full pigmentation and sun damage education hub.
References
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Kawada A, Shiraishi H, Asai M, et al. Clinical improvement of solar lentigines and ephelides with an intense pulsed light source. Dermatol Surg. 2002;28(6):504-508. PMID: 12081680. https://pubmed.ncbi.nlm.nih.gov/12081680/
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Hennessey E, et al. A Novel Combination of BroadBand Light (BBL HERO) and Nonablative Fractionated 1,927nm (MOXI) Laser for Addressing Solar Lentigines. J Clin Aesthet Dermatol. 2024. PMID: 39386001. https://pubmed.ncbi.nlm.nih.gov/39386001/
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Bastiaens M, Hoefnagel J, Westendorp R, Vermeer BJ, Bouwes Bavinck JN. Solar lentigines are strongly related to sun exposure in contrast to ephelides. Pigment Cell Res. 2004;17(3):225-229. PMID: 15140067. https://pubmed.ncbi.nlm.nih.gov/15140067/
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Kang HY, Bahadoran P, Ortonne JP. Reviewing challenges in the diagnosis and treatment of lentigo maligna and lentigo-maligna melanoma. Oncol Ther. 2016. PMID: 27182482. https://pubmed.ncbi.nlm.nih.gov/27182482/
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Wang CY, et al. Treatment of Solar Lentigines: A Systematic Review of Clinical Trials. https://pmc.ncbi.nlm.nih.gov/articles/PMC11948172/