Potenza can treat pores and fine lines in one visit, but each zone needs its own depth. See how long grid marks last and how to plan it on a Seoul trip.
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Wi Young-jin · Chief director
Seoul National University College of Medicine · Seoul National University Hospital Specialist
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Yes, one Potenza session can work on both enlarged pores and fine lines, but not with one setting across your whole face. The needle depth and energy that suit pores on your cheeks aren't the same as what suits fine creases under your eyes or a deeper fold beside your mouth, so a good plan is really a map of zones.
That matters even more when you're fitting it into a Seoul trip, because the energy level also shapes how visible the treated pattern is during the days you'll be taking photos. In this article, we'll cover how Potenza's needles and heat work, what changes between a "pore" setting and a "fine line" setting, what grid marks are and how long they tend to last, and how to plan the session around your flight home.
How does Potenza work on pores and fine lines?
Potenza uses very fine needles to carry heat below the skin's surface. The method is called RF microneedling (radiofrequency microneedling): the needles open brief channels, and radiofrequency energy released near their tips heats the dermis, the layer that holds most of your skin's collagen.
The heat is the point. A review of the technology explains that radiofrequency was added to microneedling to induce thermal injury and increase dermal heating to enhance the dermal wound healing cascade. Plain microneedling relies on the needles alone.
For pores, the evidence is encouraging but small. In a study from Seoul that enrolled 30 patients with acne scars and large facial pores, scar grades and pore assessments improved in more than 70% of all patients. That's one small study, so it tells you the approach can help pores, not how much it will help yours.
Fine lines have their own small studies. In a small study of Korean patients treated for lines around the eyes, all patients exhibited wrinkle improvement in the lateral periorbital area, the outer corner where crow's feet sit. Individual results vary, and these are studies of the method rather than of any single clinic's results.

Pore setting vs. fine-line setting: what actually changes?
What changes is mostly depth and energy, chosen zone by zone. Skin isn't the same thickness across your face, and the review above puts it directly: needle depth should reflect the relative differences in epidermal and dermal thickness throughout the face.
The same review offered starting points by area, 1.0 mm for the malar region and 0.5 mm for the perioral skin, meaning the cheek area and the skin around the mouth. Those are guide numbers from one review, not a recipe; your own skin changes them.
Here's the part most people never hear: deeper isn't automatically better for fine lines. In a split-face trial, 13 patients had three sessions with one side of the face heated deeper and the other side more superficially. Improvement of nasolabial folds was significantly better with the deep dermal approach. Effects on the lines under the eyes were only slightly better, a gap that didn't reach statistical significance.
So the fold beside your nose and the creases under your eyes don't call for the same depth, even in the same session. In practice that gives you three different targets:
Pores and texture on the cheeks: depth matched to cheek skin, with heat spread evenly across the area.
Fine lines around the eyes: depth chosen for that delicate area; in the split-face trial, going deeper added little for under-eye lines.
A fold beside the nose or mouth: the zone where deeper dermal heating made a clear difference in that trial.
Then there's the cartridge, the "tip" people search for. A systematic review lists insulated or non-insulated needles, controlled pulse durations, and adjustable needle depths among the main ways these devices differ. Insulation matters because, as the earlier review notes, insulated radiofrequency microneedling delivers a focused, local injury to the dermis while sparing the epidermis. Whatever a cartridge is called on the menu, the useful question is what it changes: needle length, needle count and whether the shaft is insulated.

Potenza grid marks and other side effects: what's normal?
Grid marks are the small dotted pattern a needle array can leave on the skin, and they're usually the first thing travelers ask about. They're tied to energy level. The persistence of grid marks usually only lasts for 1 to 2 weeks following the higher energy treatment. That's why energy is the setting to talk about if marks worry you.
Other reactions are expected and usually temporary:
Redness: the review notes it's not uncommon for transient erythema to occur between 1 and 7 days after the procedure.
Bumps: postprocedure bumps from needle entry are common in the first 24 to 48 h.
Pigment changes: the systematic review found that post-inflammatory hyperpigmentation was infrequent and self-limited.
Two cautions on that last point. Several of that review's authors work with or speak for a Korean medical device company, which is worth keeping in mind when you read its conclusions. And pigment risk is higher in skin that tans easily: in 20 Korean patients with skin types IV to V treated for eye-area lines, two patients (10%) reported mild hyperpigmentation.
Sun is the part you control. Sunscreen and shade after treatment aren't optional, especially if you tan easily. If you get cold sores, mention it before treatment so the doctor can plan around it.
Some signs aren't normal healing. If redness spreads instead of fading, the skin turns hot, increasingly painful or starts to ooze, or you develop a fever, seek medical care right away.

Fitting Potenza into your Seoul travel schedule
Unless you had sedation that day, there's no reason to push back your flight home because of the treatment. If a reaction looks unusual, the treating doctor's judgment on that specific skin comes first.
Photos are a separate question, and there's no single answer for every face and setting. As the review notes, transient erythema (redness) can occur between 1 and 7 days after the procedure. Grid marks, if they appear, are tied to higher energy, as covered above. So if your big photo day is two days after treatment, say so at consultation; it's a reason to talk about energy, not just about which day to book.
Sightseeing means sun. Plan shade, a hat and sunscreen for the days after treatment, especially if your skin tans easily.
A single visit still counts for something. Most changes from treatments like this build gradually rather than all at once, and the studies that tracked lines and laxity used a series. In the eye-area study of Korean patients, patients were treated 3 times at 4-week intervals. If you come to Seoul once or twice a year, ask for the depth and energy of each session to be written down, so the next one can start from the same baseline.
After you're home, if something looks off, you can send photos of the area through the clinic's WhatsApp consultation line. If you're seeing spreading redness, swelling that keeps getting worse or a fever, see a local doctor first rather than waiting for a reply.

Pores or fine lines first? How I'd weigh it for one trip
The first question is what actually bothers you in daylight, because "pores and fine lines" can turn out to be two or three separate concerns: texture and visible pores across the cheeks, fine creasing at the corners of the eyes, or a fold beside the nose that reads as a line. Each one points to a different depth.
From there, there are two reasonable directions:
Main concern first, at moderate energy: treat your top concern at its own depth, with the other zones at theirs, and keep the energy at a level that makes lingering grid marks less likely.
Stronger on one zone: if a fold is the real issue, deeper dermal heating on that zone is where the split-face trial saw a difference, with the trade-off that higher energy is what tends to leave marks for longer.
My read for your situation: if you're flying home within a week of treatment and photos matter, the first direction makes more sense than pushing every zone. If you'll have two weeks or more after the session, there's more room to go stronger where it's needed.

The Bottom Line
One Potenza session can address pores and fine lines, but each zone gets its own depth and energy.
Deeper heat made a clear difference for folds in one trial, but added little for under-eye lines.
Grid marks and redness are common and usually temporary; energy level affects how long marks persist.
Studies of lines used a series of sessions, so one trip is a start, not the whole plan.
Like any procedure, it comes with trade-offs, mainly temporary marks and a pigment risk you manage with sun protection. Ultimately, the choice depends on your skin, your goals and your schedule.
The variable to take into your consultation is depth by zone. You can ask, "Which depth are you using on my cheeks versus around my eyes, and is the energy set with my flight date in mind?" A clear answer to that tells you the plan was built for your face rather than for a menu item.
If you're considering Potenza on your trip, you can ask about it at Beautystone, a dermatology clinic in Seoul's Hapjeong area, one stop from Hongik University Station on Line 2. Before you book, send a WhatsApp message with your dates and daylight photos of your cheeks and eye area, for example: "Hi, I'm in Seoul from [date] to [date]. I'd like Potenza for pores on my cheeks and fine lines around my eyes. Can you look at my photos and tell me whether that fits my schedule?"

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