毛穴が目立つ原因とは?開き毛穴・黒ずみ・たるみ毛穴の違いと40代・50代のスキンケア

Enlarged Pores: Causes, Blackheads, Aging & Skincare Tips

OBARASOTARO

Have you ever looked in the mirror and wondered why the tiny dark dots on your nose or the pores on your cheeks seem so noticeable? Perhaps you cleanse your face carefully every day, yet your pores still catch your attention. Or maybe you've noticed that the pores on your cheeks look more elongated now that you're in your 40s or 50s.

Visible or enlarged-looking pores can be influenced by several factors, including sebum production, clogged pores, the natural size of hair follicles, skin dryness and age-related changes in the surrounding skin. And here's something that may surprise you: not every dark dot on your nose is dirt or a blackhead.

The reasons pores become noticeable can vary depending on where they are on your face. The pores on your nose may behave differently from those on your cheeks, and the concerns you have in your 20s may not be quite the same as those you notice in your 40s or 50s.

There are also some fascinating discoveries behind the science of pores. Those little dark dots might sometimes be fine hairs, while the shape of visible pores can vary with age and even their position on your face.

In this guide, we'll explore the differences between enlarged pores, blackheads, clogged pores and sagging-looking pores. We'll also uncover what's behind those stubborn dots on your nose, look at research involving Japanese women and share practical skincare ideas for everyday life.

Understanding your pores is a useful starting point for choosing skincare that suits your skin. Let's begin with the surprisingly interesting structures beneath the surface.

What You'll Discover in This Guide

• Why pores become noticeable and how different pore concerns compare

• The difference between blackheads, clogged pores and sebaceous filaments

• Why pores on the cheeks may look different in your 40s and 50s

• Practical tips for cleansing, moisturising, sun protection and makeup

1. Why Are My Pores So Visible? Understanding Hair Follicles, Sebum and Skin Cells

We often imagine pores as tiny holes in the skin. In reality, there's much more going on beneath each opening.

Most of the pores you can see on your face are openings of structures called hair follicles. These extend beneath the skin's surface and are connected to structures involved in hair growth and sebum production.

Sebaceous glands produce sebum, an oily substance that travels through the follicle towards the surface of the skin.

When you hear the word "sebum", you might immediately think of a shiny nose or makeup that doesn't stay in place. However, sebum is a normal part of healthy skin and contributes to the mixture of lipids found on its surface.

So why are some people's pores more noticeable than others?

Several factors can contribute, including the natural size of the follicles, the amount of sebum produced, the accumulation of skin cells around follicular openings and the characteristics of the surrounding skin.

Take the nose and forehead, for example. These areas, often called the T-zone, have a relatively high concentration of sebaceous glands.

That's one reason pores and oily shine may be particularly noticeable in these areas compared with other parts of the face.

Sebum production varies from person to person and is influenced by factors such as genetics, hormones and age. Having a shiny nose doesn't automatically mean you're not cleansing properly.

The size of the follicles themselves also varies naturally. Washing away surface oil doesn't instantly change the underlying structure of a pore.

Beauty Fact ① | Did You Know Your Palms Don't Have Hair Follicles?

Hair follicles are found on areas such as the face and arms, but they're absent from the palms of your hands and the soles of your feet. Yet these areas can still sweat! That's because sweat reaches the surface through separate openings connected to sweat ducts. The openings of hair follicles and sweat ducts are different structures. It's a fascinating reminder that not every tiny opening in the skin serves the same purpose.

There's another important part of the story: keratin and the skin cells found inside follicles.

You may associate keratinised skin cells with the outer surface of your skin, but a similar process also takes place inside hair follicles.

As cells mature and are shed, they can accumulate around the follicular opening. When this material mixes with sebum, it may contribute to the formation of a plug commonly called a comedonal plug.

That's why a clogged pore isn't simply a lump of oil. Keratin-containing material from skin cells is also an important part of the picture.

Research examining prominent facial pores has provided interesting insights into the composition of these plugs. We'll return to those findings in Chapter 5, where we look at how visible pores differ across age groups.

Once you understand that follicles contain an ongoing system of sebum production and skin-cell turnover, it becomes easier to appreciate why pores can look different from one person to another.

2. Enlarged Pores, Blackheads, Clogged Pores and Sagging-Looking Pores: What's the Difference?

If you've ever searched online for information about large pores, you've probably come across several different terms.

Enlarged pores, blackheads, clogged pores and sagging pores are often discussed as separate skincare concerns.

These are mainly descriptive terms used in beauty and skincare discussions. They don't all correspond to formal medical diagnoses, but they can help explain why pores look different.

Enlarged-looking pores appear as relatively large, round openings in the skin. They are often noticeable around the nose, forehead and inner cheeks. Their appearance may be related to follicle size, sebum production and surrounding skin characteristics.

Blackhead-like pores appear as darker dots, particularly on the nose and around the nostrils. Some are blackheads, while others may involve normal skin structures or tiny hairs.

Clogged pores may appear as small pale bumps or areas of uneven texture. In some cases, these are closed comedones, commonly known as whiteheads, where material accumulates within a blocked follicular opening.

Sagging-looking pores is a beauty term used to describe pores that appear oval or vertically elongated, often on the cheeks. Age-related changes in skin structure and elasticity may contribute to their appearance.

You may also come across the expression "dryness-related visible pores". This usually describes a situation in which dry skin and changes in surface texture make the tiny contours around pores more noticeable.

Here's something worth remembering: you don't have to fit into just one category.

You might notice dark dots on your nose, round pores on your forehead and more elongated-looking pores on your cheeks, all at the same time.

Different areas of the face have different characteristics, so it makes sense that your pore concerns may vary from one area to another.

Beauty Fact ② | Why Does Goosebumps Make the Skin Around Hair Follicles Rise?

Ever wondered why your skin develops goosebumps when you're cold or listening to moving music? Tiny muscles called arrector pili muscles are attached to hair follicles. When they contract, the hairs stand more upright and the surrounding skin forms tiny raised bumps. Hair follicles aren't just connected to sebaceous glands; they also have their own little muscles!

So how can you get a better idea of what you're seeing on your own face?

Start by looking at your nose, forehead and cheeks separately in ordinary, comfortable lighting.

Are the openings on your nose mostly round? Do you notice distinct dark dots or small pale bumps? On your cheeks, do the pores look more oval or elongated?

You might also notice that your skin looks uneven in some places even when there are no obvious dark spots.

These observations won't tell you everything about what's happening beneath the surface, but they can help you describe your skin concerns more clearly.

And if the main thing bothering you is those persistent dark dots on your nose, the next chapter reveals why they aren't always what they seem.

3. Why Won't the Black Dots on My Nose Go Away? Blackheads vs Sebaceous Filaments

You've just washed your face, but there they are again: tiny dark dots scattered across your nose.

Perhaps you've tried removing them, only to notice similar dots appearing in the same places later.

The interesting thing is that not every dark dot on the nose is a blackhead.

Let's start with a true blackhead, known medically as an open comedone.

A blackhead develops when material containing skin cells and sebum accumulates inside a follicle, while the opening remains exposed.

Its dark colour is associated with processes involving pigment and oxidation near the exposed surface of the plug.

In other words, a blackhead isn't simply a speck of dirt that someone forgot to wash away.

A whitehead, or closed comedone, differs because the follicular opening is blocked. Both blackheads and whiteheads are forms of comedonal acne.

But there's another structure that can look surprisingly similar to a blackhead: the sebaceous filament.

Sebaceous filaments are fine, thread-like structures within follicles. They're associated with the movement of sebum towards the surface and are a normal feature of the skin.

They may appear as tiny, relatively uniform dots on the nose, forehead or chin. Their colour can range from pale yellow and grey to light brown.

According to Cleveland Clinic, sebaceous filaments are a normal part of healthy skin and are different from blackheads.

Blackheads may appear as more distinct dark spots, while visible sebaceous filaments often look smaller, flatter and more evenly distributed.

However, their appearance can overlap, so it's not always possible to identify them accurately just by looking in the mirror.

That familiar collection of little dots across your nose may therefore be a mixture of different things rather than a single type of clogged pore.

Beauty Fact ③ | Could Those Black Dots Actually Be Tiny Hairs?

Some small dark dots on the nose may be associated with a condition called trichostasis spinulosa. In this condition, several fine hairs become retained within a single follicle, sometimes creating the appearance of a tiny dark spot. Dermatologists may use magnification to identify these fine hairs. It's an unexpected reminder that a dark dot doesn't always mean a build-up of sebum or a blackhead.

So why might similar dots become visible again after you've removed material from your pores?

Inside the follicles, skin cells continue to mature and shed, while sebaceous glands continue producing sebum.

If conditions favour the accumulation of material near the follicular opening, another plug may form over time.

Sebaceous filaments can also re-form after being removed because they're part of the skin's normal structure.

Understanding this distinction can change the way you think about those tiny dots. Their return doesn't necessarily mean you've been cleansing incorrectly.

Rather than trying to squeeze out every visible dot, it's worth choosing a gentle skincare routine that suits your skin.

Forceful squeezing with fingernails or tools can irritate or injure the skin. We'll look more closely at pore strips, exfoliation and blackhead care in Chapter 6.

4. Why Do Pores Look Bigger on Some Days? Dryness, Skin Texture and Lighting

Have you ever noticed that your pores seem barely visible one day but much more noticeable the next?

Or perhaps your skin looks smooth in your bathroom mirror, yet the pores on your cheeks seem surprisingly obvious under bright lighting elsewhere.

The appearance of pores isn't influenced only by the physical size of the follicles. The condition of the skin's surface and the way light falls across it can also make a difference.

For example, sebum and perspiration can change how light reflects from the face, making the tiny contours around pores more noticeable.

Dryness can also influence the skin's surface texture. When the skin feels dry or looks less smooth, small irregularities around the pores may stand out more clearly.

There's an important distinction here: a temporary change in how pores look doesn't necessarily mean the underlying follicles have physically changed size.

You may notice a difference in your skin's appearance before and after cleansing or moisturising, but that doesn't establish that the structure of the pores has changed.

Lighting adds another interesting dimension.

When strong light strikes the face from an angle, tiny shadows may form around surface irregularities, making pores appear more pronounced.

Softer light coming from the front may make the very same skin look smoother.

You can even notice this at home by comparing how your skin looks near a window in gentle daylight with how it appears under strong overhead lighting.

Photography and social media images are influenced by lighting, camera settings and sometimes image processing too. A highly magnified photograph can give a very different impression from what someone sees at a normal conversational distance.

Beauty Fact ④ | Do Pores Open With Steam and Close With Cold Water?

You may have heard the beauty tip that warm steam "opens" pores and cold water "closes" them. But pores don't have little doors that open and shut on command. Temperature can temporarily influence how the skin feels and looks, but rinsing with cold water doesn't permanently change the size of a hair follicle. For everyday cleansing, comfortably lukewarm water is a sensible choice.

Another factor worth understanding is the outermost layer of the skin, called the stratum corneum.

This thin layer plays an important role in helping the skin retain moisture. When its condition changes and the skin becomes dry, the surface may feel less smooth and the fine contours around pores may become more apparent.

For example, if your cheeks feel tight after cleansing or your foundation doesn't sit evenly on the skin, dryness may be worth considering.

At the same time, it's entirely possible for your nose and forehead to feel oily while your cheeks or the area around your mouth feel dry.

Sebum production and the water content of the outer skin layers are different characteristics, so every part of the face doesn't necessarily behave the same way.

You might prefer a lightweight moisturising lotion on your forehead and nose, while enjoying a richer cream on areas that tend to feel dry.

Choosing skincare according to how different areas of your skin feel can make your daily routine more comfortable and enjoyable.

When observing your pores, it can also be useful to notice whether you're looking at your skin before cleansing, after washing your face or after applying makeup.

Recognising the difference between your natural pore characteristics and temporary changes in surface appearance helps put those everyday variations into perspective.

Of course, not all changes are temporary. Our skin also develops different characteristics as we get older.

In the next chapter, we'll explore what researchers have discovered about visible pores in Japanese women and why the pores on the cheeks may look different in your 40s and 50s.

5. Why Do Pores Look Different in Your 40s and 50s? What Research Reveals About Ageing Skin

Perhaps you spent your 20s worrying about blackheads on your nose, only to discover that the pores on your cheeks have become more noticeable in your 40s or 50s.

If that sounds familiar, you're not alone. The appearance of facial pores can change with age, and researchers have investigated why different patterns may emerge over time.

What's particularly interesting is that visible pores don't necessarily follow one simple pattern of becoming progressively larger with every passing year.

In 2007, Japanese researchers published a study examining prominent facial pores in 248 Japanese women.

The researchers found that prominent pores among women in their 20s and 30s were often associated with material known as follicular casts, which contain substances originating from skin cells.

An analysis of follicular casts also revealed that proteins made up a substantial proportion of the material. This helps explain why a pore plug is more complex than simply a collection of oil.

As the women in the study became older, researchers observed a greater proportion of prominent pores without these follicular casts.

They also reported that the relationship between pore size and sebum production became weaker with age.

This suggests that the reasons pores are noticeable in younger skin may differ from those associated with mature skin.

Another study, published in 2001, examined facial skin in 98 Japanese women aged between 18 and 78.

The researchers investigated several areas, including the upper, middle and lower cheeks, as well as the chin.

They found that the average size and number of pores measured on the lower cheeks and chin tended to increase with age.

On the upper and middle cheeks, however, the pattern was different. Average pore size showed a peak around the age of 40, while pore length continued to be associated with ageing.

The researchers suggested that changes in the structures surrounding pores, together with stretching associated with skin sagging, could help explain these differences.

In other words, the position and shape of a pore may be just as interesting as its apparent size.

These findings don't mean that everyone will experience the same changes at the same age. They describe patterns observed in particular groups of women under specific research conditions.

Beauty Fact ⑤ | How Do Scientists Measure Something as Tiny as a Pore?

In the 2001 Japanese study, researchers used replicas of the skin's surface to examine pore shapes. These detailed impressions preserved tiny surface features, allowing the researchers to measure them using image-analysis software. Rather like making an impression of a small object, the method allowed scientists to investigate changes in pore size and shape without relying on ordinary photographs alone.

So what do these discoveries mean when you're looking at your own skin?

In your 40s, you may begin noticing changes in the appearance of pores on your cheeks.

Rather than looking only at your nose, try observing the areas beside your nose and across the middle and lower parts of your cheeks.

Do some pores appear round while others look more oval or vertically elongated? Does the appearance vary between different parts of your face?

These observations can help you understand what you mean when you describe your pores as becoming more noticeable.

In your 50s, you may also notice changes in skin dryness, firmness and the way your usual skincare products feel.

Hormonal changes around menopause can influence skin characteristics, including moisture and elasticity. However, the appearance of pores cannot be explained by hormones alone.

Genetics, natural follicle characteristics, cumulative sun exposure and other factors all contribute to the overall picture.

You may find that the lightweight moisturiser you enjoyed in your 30s no longer feels quite as satisfying, particularly during cooler weather.

Or perhaps your forehead still feels oily while your cheeks seem to prefer a richer cream.

There's no need to choose your entire skincare routine according to your age alone. Paying attention to how your skin feels today can be far more useful than following a rigid age-based rule.

The real value of these studies is that they help us appreciate just how varied the appearance of facial pores can be throughout life.

6. Pore Strips, Blackhead Extraction and Facial Scrubs: What Should You Know?

When the pores on your nose become particularly noticeable, it's tempting to reach for a pore strip, facial scrub or another product designed to remove surface build-up.

There are many ways to care for the skin around your pores, but choosing a method that suits your skin is just as important as choosing the product itself.

Let's start with pore strips.

Adhesive pore strips are designed to lift material from the surface and openings of pores. Depending on the product and the condition of the skin, some visible material may be removed when the strip is peeled away.

However, removing an adhesive strip can also cause temporary redness or irritation, particularly if your skin is already feeling sensitive or dry.

If you choose to use one, follow the instructions carefully, including the recommended application time and frequency.

What about squeezing blackheads with your fingers?

It's understandable to want to remove a visible plug, but pressing firmly with fingernails or tools can injure the surrounding skin.

The delicate skin around your nose deserves the same gentle attention as the rest of your face.

If blackheads or whiteheads keep returning, a dermatologist can help determine whether you are dealing with comedonal acne and discuss appropriate care.

Facial scrubs and exfoliating products are another popular choice.

A facial scrub generally uses particles or another form of physical friction to remove loose material from the skin's surface.

Other exfoliating products use ingredients that help loosen and remove surface skin cells. Their characteristics and directions for use vary from one product to another.

The American Academy of Dermatology advises choosing an exfoliation method according to skin type and being gentle to avoid irritation.

For example, if your skin feels tight after cleansing, or you notice redness and stinging, it may be worth reviewing the products you're using and how frequently you're using them.

After exfoliating, a moisturiser suited to your skin can be a welcome part of your routine.

Beauty Fact ⑥ | Can Years of Sun Exposure Be Associated With Blackheads?

Dermatologists recognise a condition involving sun-related comedones, sometimes called solar comedones. They may appear in areas of skin affected by long-term sun exposure, particularly on the face of older adults. These aren't necessarily the same as ordinary blackheads seen in younger skin. It's another fascinating example of how similar-looking spots can have different backgrounds.

There's another useful way to think about pore care: consider how your skin feels after using a product, not just what you can see immediately afterwards.

A product may leave your skin feeling freshly cleansed, but persistent tightness, redness or discomfort is a reason to reconsider the routine.

It can also be helpful to avoid introducing several new exfoliating products at the same time. If your skin becomes uncomfortable, identifying the cause may otherwise become more difficult.

Daily skincare doesn't have to be complicated. A suitable cleanser, a moisturiser you enjoy using and thoughtful sun protection provide a practical foundation.

Specialised products can then be considered according to individual preferences, product directions and how your skin responds.

7. Everyday Skincare for Visible Pores: Cleansing, Moisturising, Sunscreen and Makeup

Now that we've explored what pores are and why they may become noticeable, let's turn to the everyday routine.

For most people, a sensible starting point is gentle cleansing, moisturising according to skin needs and regular sun protection.

In the morning, consider how your skin feels when you wake up.

If your nose or forehead feels oily, you may prefer using a mild facial cleanser. Apply it gently and rinse with comfortably lukewarm water rather than very hot water.

After cleansing, choose a moisturiser according to your skin's current needs.

You might enjoy a lightweight lotion across your forehead and nose, while applying a little more cream to areas that tend to feel dry.

The important thing is to find a texture and application routine that feels comfortable, rather than assuming every part of your face needs exactly the same amount of product.

During the day, sun protection deserves a regular place in your routine.

Long-term exposure to ultraviolet radiation contributes to changes in the skin associated with photoageing, including changes in firmness and elasticity.

The American Academy of Dermatology recommends broad-spectrum sunscreen with an SPF of at least 30 as part of skincare advice for people concerned about visible pores.

Choose sun protection suitable for your environment and activities, and follow the product directions for application and reapplication.

A hat, shade and other sun-protective measures can also be helpful when spending time outdoors.

In the evening, think about what you've worn on your skin throughout the day.

Makeup and sunscreen may require an appropriate cleansing product. Whether a second cleanser is necessary depends on the products used and their instructions.

The aim is to cleanse comfortably without repeatedly rubbing the areas where pores are most noticeable.

And what about makeup? Can it help make visible pores appear less noticeable?

Makeup application can make a surprising difference to how skin texture looks.

Applying a thick layer of foundation over the cheeks or nose may sometimes draw attention to fine surface irregularities.

Instead, you might prefer applying a light, even layer over moisturised skin and gradually building coverage only where you want it.

The finish of a primer can also influence the final appearance, especially if your skin tends to become shiny during the day.

Beauty Fact ⑦ | The Optical Science Behind Pore-Blurring Makeup

Some makeup primers contain powders or other ingredients that scatter light across the skin's surface. By changing how light is reflected and diffused, these formulations can help create the appearance of smoother-looking skin. It's an optical approach rather than a physical change to the follicles themselves. Sometimes the secret to a different-looking finish is simply the way light behaves!

If you're looking at makeup or skincare labels, you may also encounter the term "non-comedogenic".

This generally describes products formulated with the intention of being less likely to contribute to comedones, although labelling practices and supporting tests can vary.

It doesn't guarantee that a product will suit every person's skin, so comfort and individual experience still matter.

Seasons can also influence what feels pleasant on your skin.

In summer, perspiration and sebum may make lightweight moisturising products particularly appealing. During winter, cooler air and indoor heating may leave some areas of the face feeling drier.

You may find yourself enjoying different textures throughout the year: a fresh-feeling lotion during warmer months and a richer cream when the weather turns cooler.

This can be especially relevant in your 40s and 50s, when your preferences and the way your skin feels may differ from earlier years.

Your skincare routine doesn't have to remain exactly the same forever. Choosing products that feel pleasant to use can make your daily routine something you genuinely look forward to.

8. Living Comfortably With Visible Pores: When to See a Dermatologist and Choosing Your Skincare

Pores are a natural part of healthy skin. Their size, shape and visibility vary from one person to another.

Still, there are times when a spot that looks like an ordinary pore deserves a closer look.

If you notice significant redness, swelling, pain or persistent itching around a follicle, it's sensible to seek advice from a healthcare professional.

A dark spot that changes noticeably, bleeds or develops into a sore that doesn't heal should also be assessed by a doctor.

If blackheads or whiteheads repeatedly trouble you, a dermatologist can help distinguish comedonal acne from other skin concerns.

Everyday cosmetic skincare and medical care have different purposes, and knowing when to seek professional advice is part of looking after your skin.

For your daily routine, however, there is plenty of room to enjoy choosing skincare products that suit your preferences.

Perhaps you love the fresh feeling of a lightweight moisturising lotion after cleansing. Or maybe you prefer the comforting texture of a cream on cheeks that tend to feel dry.

Finding a routine that suits your skin and lifestyle can make a few minutes of daily skincare a pleasant part of your morning and evening.

Beauty Fact ⑧ | Is Every Tiny Depression in the Skin Really a Pore?

Not every small indentation on the skin is a follicular opening. Some tiny depressions may be associated with acne scarring, where changes in the skin's structure leave a lasting uneven area. Although they can look similar at first glance, an acne scar and a natural pore are different structures. A dermatologist can help identify the cause of any unusual or persistent changes in skin texture.

At Brilliant Life Products NZ, we enjoy introducing skincare products that can become part of a comfortable everyday beauty routine.

Our range includes skincare from brands such as LANOCREME and Ninety Nature, offering lotions, creams and other products for those who enjoy moisturising skincare.

Whether you prefer a light, refreshing texture or a richer, more comforting cream, exploring different skincare options can be a lovely way to discover what feels right for you.

If your skincare preferences have changed as you've moved through your 40s or 50s, it may be an ideal opportunity to revisit the products you use each day.

There is no need to chase an unrealistic image of completely poreless skin. Instead, you can enjoy learning about your skin, choosing products you like and creating a routine that fits naturally into your everyday life.

Frequently Asked Questions About Visible Pores

Q1. Can I use a sheet mask every day if my pores are noticeable?

It depends on the product. Some sheet masks are designed for frequent use, while others have different recommended schedules. Follow the instructions for the particular mask and pay attention to how your skin feels. Leaving a mask on longer than directed is not necessarily better.

Q2. How should I introduce a new skincare product into my routine?

Follow the product directions and consider trying one new product at a time. If your skin is sensitive, testing it on a small area first may help you identify a reaction. Stop using the product if irritation occurs, and seek medical advice if symptoms persist.

Q3. Is it okay to use a facial steamer when my pores are visible?

A facial steamer can be used according to its instructions, but pay attention to the temperature, distance from your face and recommended duration. Hot steam can cause burns or irritation. Choose a comfortable approach rather than using excessive heat.

Q4. Should I use a facial cleansing brush on areas with noticeable pores?

Cleansing brushes vary in design, including manual and electric models. If you use one, follow the manufacturer's directions and avoid pressing or scrubbing firmly. If your skin is red, sore or irritated, give it a break from potentially irritating tools.

Conclusion | Understanding Your Pores and Finding Skincare That Suits You

Visible pores have many possible contributing factors, from sebum production and follicular plugs to natural pore structure, skin texture and age-related changes.

The dark dots on your nose may not all be blackheads, and pores on your cheeks may look different as you get older. Research has also shown that pore appearance can vary according to age and facial location.

Whether you're concerned about blackheads or simply noticing changes in your skin during your 40s and 50s, understanding these differences can make choosing everyday skincare easier. Enjoy a gentle cleansing routine, moisturising products that suit your preferences and thoughtful sun protection as part of caring for your skin.

References and Further Reading

1. Mizukoshi, K., Oyobikawa, M., Ito, Y., Kobayashi, K., Imamura, H., & Matsumoto, K. (2007).
Survey Research on Enlarged Pores as a Function of Age.
Journal of Society of Cosmetic Chemists of Japan, 41(4), 262–268.
https://doi.org/10.5107/sccj.41.4_262

2. Nishijima, T., Ohsu, H., Kitahara, T., & Takema, Y. (2001).
Regional Difference in Morphological Changes in Facial Skin Surface with Aging.
Journal of Society of Cosmetic Chemists of Japan, 35(2), 141–148.
https://doi.org/10.5107/sccj.35.2_141

3. American Academy of Dermatology Association.
What Can Treat Large Facial Pores?
https://www.aad.org/public/everyday-care/skin-care-secrets/face/treat-large-pores

4. Cleveland Clinic (2023).
Sebaceous Filaments: Difference From Blackheads & Treatment.
https://my.clevelandclinic.org/health/articles/24571-sebaceous-filaments

5. DermNet (2025).
Trichostasis Spinulosa.
https://dermnetnz.org/topics/trichostasis-spinulosa

6. American Academy of Dermatology Association (2026).
How to Safely Exfoliate at Home.
https://www.aad.org/public/everyday-care/skin-care-secrets/routine/safely-exfoliate-at-home

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