Why Pores Look Bigger: Oil, Laxity and Old Acne

A pore is simply the opening of a hair follicle and its oil gland, and everyone has them across the whole face. What changes from person to person is how visible they are. A 2016 review in Dermatologic Surgery that pulled together the research on facial pores named three main drivers: high sebum output, reduced elasticity in the skin around the opening, and a larger hair follicle. The same review added that recurring acne, sex hormones and skincare habits can all influence how big pores look, and concluded that treatment has to be chosen according to the cause.

In practice, those causes tend to show up in recognizable patterns. Oil-driven pores sit mostly on the nose, inner cheeks and forehead, look shiny by midday and often come with clogging. Laxity-driven pores appear more on the outer cheeks, tend to look oval or teardrop-shaped rather than round, and become more noticeable as collagen support thins with age and sun exposure. Acne-related texture looks different again: small depressions and uneven edges where inflamed breakouts once healed. Many faces have all three at once, which is why one person's ideal pore treatment can do very little for someone else.

Blackheads are their own category. A blackhead is an open comedone, a pore plugged with dead skin cells and oil, and its dark color comes from that material being exposed to air rather than from dirt. Many of the gray dots on the sides of the nose are not blackheads at all but sebaceous filaments, a normal lining of oil and cells that every pore holds. You can squeeze them out, and they refill within weeks. Telling the two apart matters, because a blackhead can be cleared and prevented, while a sebaceous filament can only be made less visible.

What Home Care Can and Can't Do

Home care does the most for the oil-and-clogging side of the problem, so start there. Salicylic acid, the BHA in many Korean toners and pads, is oil-soluble, which lets it work inside the pore lining and loosen the plug that becomes a blackhead. Topical retinoids work further upstream by normalizing how the cells lining the follicle shed, so fewer plugs form in the first place. The American Academy of Dermatology's 2024 acne guidelines give topical retinoids a strong recommendation and salicylic acid a conditional one, a fair summary of how much evidence each has behind it.

Softening sebum is the third piece. Oil cleansers and cleansing balms followed by a gentle foam, a few minutes of warm steam from the shower, or an occasional clay mask can make congestion on the nose look calmer. These steps help sebum lift away more easily; they do not tighten pores. The most common mistake is stacking everything at once: daily scrubs, strong acids and a retinoid in the same week tend to leave skin dry and irritated, and irritated skin often looks rougher than before. Introduce one active at a time, use a moisturizer, and wear sunscreen every day, since sun damage weakens the collagen that holds pore walls in shape.

What home care cannot do is rebuild the skin around a pore that has lost support, or smooth out texture left by old acne. Pore strips and suction gadgets pull out the top of a plug, but they also stretch and irritate skin, and filaments refill on schedule anyway. If oil is under control and pores still look the same in daylight, the remaining cause is probably structural, and that is where a clinic has tools that a bathroom shelf does not.

How Korean Clinics Treat Pores and Blackheads

Korean dermatology clinics tend to treat pores as a combination problem, and a consultation usually starts by working out whether the main issue is congestion, oil, laxity or acne texture. The methods below are the common categories. Device and product names are listed because they are what you will see on clinic menus; none is inherently better than another, and the right choice depends on the diagnosis and on how the device is set.

Extraction and scaling. Manual extraction by trained staff, often paired with a cleansing device such as Aqua Peel or Hydrafacial that softens, exfoliates and suctions the surface, clears existing blackheads and leaves the nose looking smoother. It addresses what is already in the pore rather than why it formed, so it works best alongside home care.

Chemical peels. Salicylic acid peels suit oily, congestion-prone skin because they work inside the pore lining, while glycolic or lactic acid peels focus more on surface roughness. Superficial peels are usually done as a series.

Laser toning and fractional lasers. Low-fluence Q-switched Nd:YAG toning and picosecond lasers are commonly used in Korea for tone and mild texture with little visible recovery. Fractional lasers, from non-ablative types such as Fraxel to ablative CO2 fractional systems, create tiny columns of controlled injury that prompt new collagen, which is why they are used for acne scars and laxity-related pores.

RF microneedling. Fine needles deliver radiofrequency energy below the surface to stimulate collagen around the pore and in acne scars. Platforms you may see include Potenza, Sylfirm X, Secret RF and Morpheus8. Small clinical studies report improvement in pore scores after a series of sessions, and it is a frequent choice when pores look large because of laxity. Our guide to Potenza RF microneedling covers how one of these platforms is used in more detail.

Skin boosters. Injectable boosters, such as polynucleotide (PN) products like Rejuran or hyaluronic acid boosters, are aimed at hydration and skin quality rather than at the pore itself. Clinics often add them to a texture plan when skin is thin or dehydrated.

Downtime: Planning Pore Treatment Around a Trip

For a visitor, downtime often decides the plan more than anything else. Recovery depends on the device, the settings and your skin, so treat the groups below as typical ranges rather than promises, and ask the clinic what they expect for you.

Little visible downtime. Extraction-based facials and low-fluence laser toning usually leave redness that settles within hours. Extraction can leave a few marks on the nose for a day or two. These are the easiest to fit between sightseeing.

Light downtime, one to three days. Superficial peels can cause redness and some flaking for a few days. Skin boosters leave small injection bumps that typically flatten within a day, and bruising, if it happens, can take several days to fade.

Several days. RF microneedling commonly brings redness, mild swelling and pinpoint marks for a few days. Non-ablative fractional lasers cause redness and a sandpaper feel for several days, and ablative CO2 fractional treatment can mean crusting and a week or more of recovery. These are better scheduled early in a trip, with a buffer before photos or a long-haul flight.

Whatever you choose, plan for strict sun protection afterward and avoid stacking several heat-based treatments in one visit unless the doctor recommends it. Many of the deeper treatments are designed as a series spaced weeks apart, so a single session on a short trip is a starting point rather than a finished result.

What Pore Treatment Can't Do

It cannot erase pores. Every pore is part of a working hair follicle and oil gland, so the realistic goal is pores that are less visible, cleaner and smoother, not skin without pores. Any clinic or product that promises pores will disappear is overselling.

It needs maintenance. Oil glands keep producing sebum, sebaceous filaments refill and collagen keeps changing with age and sun. Improvement from peels and extraction fades within weeks without home care, and texture results from collagen-building treatments also soften over time. Most plans include ongoing home care and occasional top-up sessions.

Active acne comes first. If you have inflamed breakouts, they need treatment before any pore-focused procedure. Needling, lasers or aggressive extraction over active acne can spread inflammation and leave marks, and skin that tends toward dark spots after irritation needs especially careful settings. Recent use of oral isotretinoin, a skin infection, pregnancy or a tendency to keloid scarring are all reasons for a doctor to assess before treatment, and persistent redness with bumps may turn out to be rosacea rather than a pore problem. Our guide to acne care in Korea is the better starting point if breakouts are still active.

If you would like help arranging a pore consultation in Seoul, BeautiPin, which is registered in Korea as a foreign patient facilitation agency, offers its own consultation service. You can browse the clinics we work with or send us a message on Instagram, including about a clinic you already have in mind. Costs depend on the diagnosis, the treatment area and the number of sessions, so they are confirmed during the consultation.