Open Pores on Face: Why They Appear and What Reduces Them

Open pores are one of the most common skin complaints and one of the most misunderstood. People chase products that promise to close pores forever, feel let down when nothing works permanently, and often make the problem look worse in the process. The truth is more useful, if less dramatic: you cannot erase pores, but you can absolutely make them look smaller with the right approach.

This guide explains why pores appear enlarged, what genuinely reduces their visibility, and which popular fixes are a waste of time. If oily skin is part of your picture, our guide on choosing a cleanser for oily skin pairs well with this, and you can browse the O'Shea Herbals pore-minimising range as you read.

1. What Open Pores Actually Are

Pores are the tiny openings of the hair follicles, and each one connects to a sebaceous gland that produces sebum, the natural oil that keeps skin soft and protected. In other words, pores are essential working parts of healthy skin, not defects to be eliminated. They are most concentrated and most visible in the T-zone of the forehead, nose and chin, where oil glands are larger and more active.

When people talk about open pores, they usually mean pores that look larger and more noticeable than they would like. That visibility, not the existence of pores, is the thing you can actually influence. Understanding this changes the goal from an impossible one, closing pores, to a very achievable one, minimising their appearance.

This reframing matters because it changes how you spend your effort and money. Once you accept that pores cannot be erased, you stop wasting time on products and gadgets that claim to close them and start investing in the handful of things that genuinely reduce their visibility. It is a more honest goal, and a far more satisfying one, because it is actually achievable. Smoother, more refined skin is within reach for almost everyone; permanently poreless skin is not.

2. Why Pores Appear Larger

Several factors make pores look bigger, and most people have more than one at play.

Excess oil is the most common: sebum fills and stretches the opening, so oily skin generally shows larger pores. Clogging with dead skin and oil widens pores further, which is why blackheads and enlarged pores often appear together. Ageing reduces the collagen and elastin that keep skin firm, so pores lose their support and look bigger over time. Sun damage accelerates that collagen loss. And genetics sets your baseline pore size and oiliness, meaning some people simply start with more visible pores. Larger hair follicle size also plays a role. Because these causes overlap, the most effective routines tackle several at once rather than chasing a single fix.

3. The Honest Truth About Pore Size

Let us be clear about something the marketing rarely admits: you cannot permanently close or shrink your pores. They are fixed anatomical structures, and no cream, tool or treatment removes them for good. Anyone promising permanently poreless skin is overselling.

What you can do, and what genuinely works, is reduce how large and visible pores appear by controlling oil, keeping pores clear of clogs, and supporting the collagen that keeps skin firm around them. That distinction is liberating rather than disappointing, because it points you toward the things that actually help instead of the ones that never could. The goal is smaller-looking pores and smoother skin, and that is very achievable. Explore the enlarged-pores collection for products built around this.

It also helps to remember that visible pores are extremely normal and almost universal, particularly across the oily T-zone. In photographs and filtered images they often appear to vanish entirely, which sets an unrealistic benchmark for how real skin looks up close. Managing expectations here is not about giving up; it is about aiming for healthy, well-cared-for skin rather than an airbrushed ideal that no routine can actually deliver in the mirror.

4. Oil Control and Cleansing

Since excess oil is the leading cause of stretched, visible pores, controlling it is the foundation. The aim is balanced, not stripped, skin, because harsh over-cleansing backfires by triggering more oil.

Cleanse twice daily with a gentle, oil-clearing wash such as an activated charcoal face wash or a papaya face wash, both suited to keeping the T-zone clear. A balancing toner like a skin balancing toner or a light rose toner helps keep oil in check without dehydrating. An occasional charcoal peel-off mask can lift surface congestion. The oily skin range and charcoal range gather these together.

5. Exfoliation and Clearing Clogs

Clogged pores look bigger, so keeping them clear is one of the most effective things you can do. Regular, gentle exfoliation removes the dead cells and hardened oil that widen pore openings.

Chemical exfoliation tends to work best here. A salicylic acid serum is particularly useful because it is oil-soluble and can get inside the pore to dissolve the plug, while a glycolic acid serum smooths the surface. Used a couple of times a week, these keep pores clear without over-stripping. A gentle physical charcoal scrub on alternate days is an option, but avoid harsh daily scrubbing, which irritates skin and worsens oil. Our guide on the benefits of exfoliation explains how to keep it gentle. The clogged-pores collection supports this step.

6. The Actives That Refine Pores

Beyond cleansing and exfoliation, a few actives specifically improve how pores look. Niacinamide is the standout: it helps regulate oil production and refine pore appearance over a few weeks, which is why a niacinamide serum belongs in almost any pore-focused routine.

Retinol supports skin renewal and firmness, gradually helping pores look tighter, so a retinol serum used at night a few times a week is valuable for long-term results. A vitamin C serum supports collagen and antioxidant defence, and hydration from a hyaluronic acid serum keeps skin plump so pores appear smoother. Browse the wider serum range to combine these sensibly.

A word of caution on combining actives: more is not better, and layering every pore-refining ingredient at once tends to irritate the skin, which then produces more oil and undoes your progress. Introduce one active at a time, give it a few weeks, and build slowly. Niacinamide is a gentle everyday base, while exfoliating acids and retinol are best kept to alternate nights so the skin has time to recover between them.

7. Protecting Collagen and Firmness

Here is the long-game step most people skip: protecting the collagen and elastin that keep skin firm and pores tight. As those fibres break down, skin loses its grip around each pore and openings look larger, and the single biggest driver of that breakdown is sun exposure.

Daily sunscreen is therefore not just about tanning or pigmentation; it is one of the most important things you can do to keep pores from enlarging over the years. A broad-spectrum high-SPF sunscreen every morning protects the structural support your pores depend on. Our guide on why sunscreen matters makes the case in full. Think of sunscreen and gentle care as an investment that keeps pores looking their best long term, supported by the wider skin care range.

8. A Pore-Refining Routine

Putting it together, a sensible routine looks like this.

Keep it consistent rather than aggressive. For the full morning flow, see our guide to using a toner and how it fits a routine.

9. Myths That Waste Your Time

Plenty of popular pore fixes do little or nothing. Pore strips pull off some surface debris but do not shrink the pore, and overuse irritates skin. Ice and cold water tighten skin for only a few minutes before the effect fades. Squeezing and picking stretches and inflames pores, often making them permanently more visible and risking scarring. And harsh daily scrubbing strips the skin, which triggers more oil and, in turn, more visible pores. None of these address the real causes, and several make things worse. Steer your effort toward oil control, gentle exfoliation, refining actives and sun protection instead. If breakouts accompany your pores, our guide on treating acne naturally is worth reading.

10. What to Expect for Your Skin Type

Results depend a little on your skin. Oily and combination skin, where enlarged pores are most common, usually sees the clearest improvement from oil control and exfoliation, often within a few weeks. Mature skin benefits most from collagen-supporting steps like retinol and diligent sun protection, which work more gradually. Genetically large pores can be made to look considerably smaller but will not vanish entirely.

Across every type, the pattern is the same: steady, gentle care beats aggressive quick fixes, and sunscreen protects your progress. Set the goal as smoother, more refined skin rather than perfection, and the routine becomes both effective and sustainable. For an overall glow alongside pore care, see our guide on getting glowing skin the right way.

Above all, treat pore care as a long-term habit rather than a project with an end date. Because oil production, sun exposure and ageing are ongoing, the factors that enlarge pores never fully switch off, so the routine that keeps them looking their smallest is one you maintain rather than complete. The good news is that the same gentle, consistent routine also keeps the rest of your skin clearer and healthier, so the effort is never wasted. In that sense, a good pore routine is really just a good skin routine, quietly working in your favour every single day.

11. Related Reading

Keep building a smoother, refined routine with these guides, products and resources from O'Shea Herbals.

12. Frequently Asked Questions

References and further reading: Cleveland Clinic, How To Shrink Pores: Dermatologist Tips; Cleveland Clinic, Clogged Pores: Causes, Treatment and Prevention; Parvar SY, et al., The Efficacy and Adverse Effects of Treatment Options for Facial Pores, Journal of Cosmetic Dermatology (2023); Enlarged Facial Pores: An Update on Treatments, Dermatology News; Cleveland Clinic, Niacinamide: Skin Benefits