Open Pores: Why They Don’t Close, and What Actually Helps
Pores don’t have muscles. They can’t open like a door and they can’t close like one either, no matter how cold the water or how astringent the toner. Understanding that one fact solves most of the confusion around this topic.
Why pores look bigger in the first place
A pore is the visible opening of a hair follicle and its attached oil (sebum) gland. Its size is determined mostly by genetics, and by a few things that make it look more prominent: excess oil production stretching the opening, sun damage reducing skin elasticity around it, and normal aging thinning the surrounding collagen. Pores are generally more visible on the nose, forehead and chin, the oiliest parts of the face, which is also why oily-skinned people notice them more than dry-skinned people.
Myth: pores open with heat and close with cold
This is probably the most repeated skincare myth in every household, and it isn’t how skin works. Pores don’t have a muscular sphincter that responds to temperature the way, say, a pupil responds to light. What actually happens with heat, like steam from a hot towel, is that the sebum inside a clogged pore softens and becomes easier to extract, which can make the pore look temporarily less obvious once cleared. What happens with cold water is that surrounding skin tightens slightly and can look momentarily smoother, purely from swelling reduction, not because the pore itself has physically shrunk. Neither is a lasting fix.
The three things that genuinely make pores look smaller
Quick facts
- Sunscreen, daily: prevents further collagen breakdown that stretches pores over time
- Regular gentle exfoliation: clears the dead skin and oil that stretch pore openings visually
- Non-comedogenic products: reduce ongoing oil buildup that keeps pores looking enlarged
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- Apply a broad-spectrum sunscreen every morning, roughly two finger-lengths for the full face, reapplying if outdoors for long stretches.
- Use a gentle chemical exfoliant (salicylic acid for oily, acne-prone skin, or a mild lactic acid for drier skin) 2 to 3 times a week, not daily, to avoid irritation.
- Choose a moisturiser and sunscreen labelled non-comedogenic, particularly if you already struggle with clogged pores or acne.
- Give this routine 8 to 12 weeks before judging results; skin renewal takes time, and no product changes pore appearance overnight.
What actually damages skin and worsens pore appearance
This is where a lot of well-meaning home remedies backfire, and it’s worth ending the confusion clearly.
| Habit | What it actually does |
|---|---|
| Ice cubes rubbed directly on skin | Temporary tightening from cold; can cause ice burn with prolonged direct contact |
| Lemon juice applied to face | Highly acidic and photosensitising; can cause chemical burns and dark patches, especially in sun |
| Aggressive pore strips used often | Removes surface debris but can irritate and stretch skin with repeated use |
| Over-scrubbing with harsh grains | Micro-tears the skin, triggers more oil production as compensation |
Our earlier piece on ice facials and ice rolling goes into the ice question in more depth, including safe versus unsafe methods, since this remedy specifically deserves its own full treatment.
Where multani mitti and besan ubtan actually help
Traditional clay-based masks like multani mitti (fuller’s earth) do have a genuine, if modest, oil-absorbing effect that can temporarily make pores look less prominent right after use, purely by removing surface oil and dead skin. This is a real, if short-lived, cosmetic effect, not a structural change to the pore itself. Our full multani mitti guide and besan and turmeric ubtan cover exact ratios and frequency for these traditional masks.
What sunscreen amount and reapplication actually looks like
Most people apply roughly a quarter to a third of the sunscreen amount needed for full protection, which means the pore-appearance benefit discussed above never really gets a fair test. The commonly cited amount is about two finger-lengths of sunscreen squeezed onto the index and middle finger, covering the entire face and neck. In direct sun for extended periods, reapplication every 2 hours is the standard guidance, though most people managing an office day indoors with brief outdoor commutes can get away with a single generous morning application plus a touch-up if stepping out at midday. Mineral sunscreens (zinc oxide, titanium dioxide) tend to sit better on oily, acne-prone skin than heavier chemical formulations for some people, though both work when applied in the correct amount.
Retinoids: the one ingredient with real evidence
Over-the-counter retinol, and prescription-strength retinoids from a dermatologist, have the strongest evidence among topical treatments for improving skin texture and modestly reducing the visual prominence of pores over months of consistent use, by increasing skin cell turnover and supporting collagen. This isn’t a home remedy and needs to be introduced slowly, usually starting two to three nights a week, to avoid irritation, and always with daytime sunscreen since retinoids increase sun sensitivity.
Myth: makeup or oil clogs pores permanently
Pores can become temporarily more visible from ongoing product buildup, but this reverses with proper cleansing and doesn’t cause lasting structural enlargement on its own in most cases. The exception is when clogging leads to repeated inflammatory acne, which can, over years, cause scarring that changes skin texture permanently, a separate issue from pore size itself.
Nose strips and blackheads: a related but separate issue
Blackheads, the small dark specks often seen around the nose, are a specific type of clogged pore where trapped oil and dead skin oxidise and darken on contact with air, distinct from the general “large pore” appearance discussed above. Nose strips physically pull out some of this trapped material, giving a satisfying, visible result, but they don’t change pore size and blackheads typically reform within days to weeks without an ongoing routine of gentle exfoliation and non-comedogenic products. Repeated aggressive extraction, whether with strips, fingers, or metal tools bought online, can stretch the pore opening over time and cause more visible irritation, which is the opposite of the intended goal.
Steam facials before a besan ubtan, a common weekend ritual in many South Asian households, work on a similar principle to modern gentle exfoliation: softening debris so it lifts away more easily. Described here as a household tradition with a plausible cosmetic basis, not a scientifically validated pore-shrinking treatment.
Anyone using a prescription retinoid should not combine it with other strong actives (high-strength acids, benzoyl peroxide) without a dermatologist’s guidance, since combining them raises irritation risk substantially. Pregnant or breastfeeding women should avoid retinoids entirely and check with a doctor before starting any new acid-based skincare, since some are not recommended in pregnancy. Anyone with active, inflamed acne should see a dermatologist rather than aggressively exfoliating, which can worsen inflammation and lead to scarring.
One last practical point: pore appearance can look worse under harsh overhead bathroom lighting or a magnifying mirror than it does in normal daylight or to someone standing a conversational distance away. A lot of pore anxiety comes from staring too closely too often, not from an actual change in the skin itself.
Can I permanently shrink my pores?
Pore size is largely genetic and cannot be permanently changed. What’s achievable is making pores look less prominent through consistent skincare, primarily sunscreen, gentle exfoliation and non-comedogenic products.
Does drinking water reduce pore size?
Hydration supports overall skin health but has no direct, measurable effect on pore size specifically.
Are pore strips safe to use regularly?
Occasional use, once or twice a month, is generally fine for most skin types. Frequent use can irritate skin and isn’t necessary for pore care.
Is baking soda good for open pores?
No, baking soda’s pH is far too alkaline for skin and can damage the skin’s protective barrier with repeated use. It’s not recommended for facial skincare.
See more honest skincare myth-busting in Desi Remedies, including our related pieces on pigmentation and melasma and face oils for oily skin.