If you have had several rounds of laser toning for a deep brown patch on your face and it looks exactly the same, it is worth considering solar lentigo. Solar lentigo is a pigmented lesion that toning does not clear, so it calls for a different approach altogether. This article works through what solar lentigo is, why toning does not reach it, whether a Repot laser is the only answer, and whether it can be removed in a single session.
What kind of pigmented condition is solar lentigo?
Solar lentigo is a pigmented lesion in a black to deep brown tone, and it is a distinct condition from freckles, ordinary dark spots, age spots, or seborrheic keratosis. It develops when melanin increases excessively or changes in a localised area, and it usually arises when melanin accumulated over years of UV exposure meets ageing skin. The name is unfamiliar to many people, but it accounts for well over half of facial pigmented lesions, and left alone it tends to grow larger or darker.
Why laser toning does not erase it
Two points come first in treating solar lentigo. Laser toning does not remove it, and shaving it away with a CO2 laser is not a suitable approach either. Solar lentigo responds only when a laser matched to the nature of the lesion is delivered in the right way. Quite a few people are advised to take several toning sessions, spend the time and the money, see no change, and conclude that solar lentigo simply cannot be erased. That outcome comes from a mismatch between the diagnosis and the device chosen, not from the lesion being untreatable.
Do you need a Repot laser?
Search for solar lentigo and you will keep running into the idea that removing it means using a Repot laser. The Repot is only one of several lasers that can treat solar lentigo, though, and the lesion is not something that only that device can clear. Skinique Clinic does not have a Repot laser, but we draw on long experience with pigmented conditions to select a laser suited to how the lesion presents and to use it effectively. Because the treatment is not built around one expensive device, the cost burden also tends to be lighter. Details are available on the Treatment Prices page.
Can it be removed in one session?
The honest answer is that sometimes it can and sometimes it cannot. Many lesions clear to a satisfying degree after one or two sessions, but solar lentigo varies widely between individuals in shape, colour and depth, so there are certainly cases that are not settled at once. That holds true whichever device is used. As a rule, younger skin with lighter pigment tends to clear without leaving a mark, while skin whose recovery capacity has declined with age, lesions with mixed colouring such as a brick tone carrying underlying redness, and lesions involving dermal vessels or melanophages need to be approached over several visits. A higher number of sessions does not mean the treatment is not working, so what matters is finding a medical team that lays out a staged plan based on the state of the lesion.
What to look for when choosing a clinic
In the end, the outcome of solar lentigo treatment turns on accurate diagnosis and hands-on experience with the lesion rather than on the name of a device. If you are looking into solar lentigo removal near Gangnam Station or Sinnonhyeon Station, you are welcome to include Skinique Clinic among the options you compare. For pigment concerns beyond solar lentigo, we can also distinguish between lesions and suggest a treatment direction for each.
Wrapping Up
Solar lentigo is a common pigmented lesion that toning does not erase, and the heart of treatment is choosing and operating a laser matched to the lesion rather than owning one expensive device. Responses differ from person to person and it does not always finish in a single session, but a staged approach can reasonably be expected to bring improvement. If you are wondering whether your spot is a solar lentigo and which treatment would suit it, feel free to ask through a chat consultation about your pigment concerns.
This article was written by Dr. Park Tae-hyung, Chief Director of Skinique Clinic and an academic director of the Korean Society for Laser, Dermatology and Trichology.
First published January 7, 2025 · Last reviewed August 23, 2026
This article provides general medical information. Skin conditions and responses to treatment vary from person to person. Please decide whether and how to proceed with treatment through an in-person medical consultation.