Sun spots are not all caused by the same process.
Brown sun spots (also known as age spots or solar lentigines) develop when years of UV exposure trigger excess melanin production. Over time, this pigment accumulates in certain areas, forming flat brown patches commonly seen on the face, chest, shoulders, and hands. Because they result from excess pigmentation, brown sun spots can often be improved with targeted skincare, professional treatments, and consistent sun protection.
White sun spots, commonly known as Idiopathic Guttate Hypomelanosis (IGH), occur for the opposite reason. Long-term sun damage reduces the number or activity of melanocytes, the cells responsible for producing melanin, leading to small white patches that typically appear on the forearms, shins, shoulders, and face. Unlike brown spots, white sun spots are caused by a loss of pigment and can be difficult to reverse once they develop. Prevention through daily sun protection remains the most effective strategy.
How Do Sun Spots Appear?
Brown sun spots develop through a gradual process of cumulative UV damage rather than a single episode of sun exposure.
When the skin is exposed to ultraviolet radiation, melanocytes produce melanin to help protect deeper skin layers from damage. Under normal conditions, this pigment is distributed evenly and gradually sheds as skin cells renew.
However, years of repeated UV exposure can disrupt this process. UV radiation not only stimulates ongoing melanin production but can also alter the activity and distribution of melanocytes, causing pigment to accumulate unevenly in specific areas of the skin. As these localized deposits become more concentrated over time, visible brown spots begin to appear.
At the same time, UV-induced oxidative stress and chronic inflammation contribute to skin aging, damaging collagen and elastin fibers that help maintain smooth, even-toned skin. This is why brown sun spots often develop alongside other signs of photoaging, including wrinkles, rough texture, and loss of firmness.
According to the Canadian Dermatology Association, cumulative UV exposure is one of the primary contributors to photoaging and pigmentation changes.
How to Get Rid of Brown Sun Spots
Because brown sun spots develop through excess melanin accumulation and years of cumulative UV damage, most treatment approaches focus on reducing existing pigmentation, promoting skin renewal, and preventing further discoloration. There are two main treatments to get rid of brown sun spots.
Professional Treatments
Dermatologists may recommend several in-office treatments for brown sun spots (solar lentigines), including IPL, fractional lasers, picosecond lasers (e.g., PicoWay), Q-switched lasers, fractional CO₂ laser, chemical peels, microdermabrasion, and microneedling.
These approaches work by reducing excess melanin and promoting skin renewal through controlled injury or energy-based pigment targeting.
A 2025 systematic review of 41 clinical trials (3,234 patients) found that laser and light-based treatments generally show higher efficacy than other methods. [Systematic review: Wiley, Treatment of Solar Lentigines, 2025].
Reported success rates include:
- IPL: 74.6%–90%
- Picosecond lasers: 67.9%–93.02%
- Q-switched lasers: 36.36%–76.6%
- Pulsed dye laser: 27%–57%
- Fractional CO₂ laser: 8%–23%
Non-laser options showed more variable outcomes:
- Chemical peels: 12%–46%
- Cryotherapy: 37%–71.4%
At-Home Treatment Options
While professional treatments can target existing pigmentation, daily skincare also plays an important role in maintaining results and helping prevent new sun spots from forming.
Sunscreen
Since UV exposure is the primary trigger for brown sun spots, broad-spectrum SPF 30+ or SPF 50+ sunscreen remains the foundation of any pigmentation management routine. Consistent sunscreen use helps minimize additional UV damage and reduces the risk of further pigment accumulation.
Brightening Ingredients
Several skincare ingredients are commonly used to help address uneven pigmentation:
- Hydroquinone
- Retinoids
- Vitamin C
- Tranexamic Acid
- Niacinamide
- Alpha Arbutin
These ingredients work through different pathways to help reduce excess pigmentation, support skin cell turnover, and promote a more even-looking complexion when used consistently over time.
Best Way to Get Rid of Sun Spots at Home
For individuals looking for non-invasive at-home options, red light therapy has gained increasing attention as part of a broader skin recovery routine.
Research suggests that red and near-infrared light may support cellular energy production (ATP), promote fibroblast activity, and support the skin's natural repair processes. While red light therapy is not considered a pigment-removal treatment in the same way as lasers, it may help improve overall skin appearance and support recovery from cumulative UV-related skin damage.[International Journal of Molecular Sciences, 2024.]
JOVS 4D Laser Mask
The JOVS 4D Laser Mask combines four laser wavelengths (660nm, 850nm, 940nm, and 1064nm) to support skin rejuvenation and help improve overall skin appearance.
In an independent SCS report, participants who used the device consistently for 28 days demonstrated a noticeable reduction in the appearance of facial spots. The study also reported improvements in overall skin quality, suggesting that regular low-level laser therapy may help support a clearer, more even-looking complexion while addressing visible signs of photoaging.
JOVS Infrared Light Therapy Full Body Mat
For individuals interested in whole-body red light therapy, the JOVS Full Body Recovery Mat delivers red and near-infrared light across larger treatment areas.
In addition to supporting skin wellness, red light therapy is commonly used for muscle recovery and temporary relief of minor muscle discomfort, making it a versatile option for both skin and body care routines.
Both devices are designed for at-home use and are cleared for consumer use under applicable safety standards.
FAQs about Sun Spots
How can I prevent more sun spots?
Daily sun protection remains the most effective strategy. Wear broad-spectrum SPF 30+ or SPF 50+ sunscreen every day, seek shade when possible, and use protective clothing such as hats and sunglasses to reduce cumulative UV exposure.
Are sun spots cancerous?
No, sun spots are usually not cancerous. Most sun spots are harmless areas of increased pigmentation caused by long-term UV exposure. However, if a spot changes in size, shape, color, or begins to itch, bleed, or grow rapidly, it is important to have it evaluated by a dermatologist.
How to fade sun spots on the face?
Sun spots can be improved with consistent sunscreen use, brightening skincare ingredients (such as vitamin C, retinoids, and niacinamide), and professional treatments like laser or IPL. At-home devices such as the JOVS 4D Laser Mask also helps support skin rejuvenation.
Conclusion
Sun spots are not all the same, which is why treatment should begin with understanding whether pigmentation is increasing or being lost. Brown sun spots caused by cumulative UV exposure may improve through a combination of sun protection, targeted skincare, professional procedures, and supportive at-home technologies. While no single solution works for everyone, consistent prevention and long-term skin recovery remain the most effective approach for maintaining a clearer, more even-looking complexion.
References1. Canadian Dermatology Association, 2024
2. Systematic review: Wiley, Treatment of Solar Lentigines, 2025
