Digital Clinic for Skin & Hair Care That Works!

Menu
  • Home
  • Skin Care
  • Beauty
  • Health
Home
Beauty
What Causes Acne?
Beauty

What Causes Acne?

6 March 2025


What Causes Acne?




What causes acne for you may be different that what causes acne for your friends. This is because acne comes in many forms and can have a variety of underlying causes. You may suddenly have a breakout, or you may have chronic acne. You may have bad acne or cystic acne, or you might just suffer from skin breakouts with stress or only have clogged pores.



Hormonal changes, skin cell buildup, inflammation, bacterial growth, and diet can all cause or worsen these different types of acne. In this guide, I’ll dive deeper into the main causes of acne and what you can do to treat it. These acne causes and treatment recommendations are based on your skin type, so if you do not yet know your Baumann Skin Type, take a minute to take the quiz before diving into the details!




There are many types and specific cause of acne.



Acne occurs when C. acnes bacteria becomes trapped inside pores, causing inflammation, redness, and sometimes pain.




To treat acne most effectively, use an acne-prone skin care regimen designed for your skin type.



What Is Acne?




Acne is an inflammatory condition of the hair follicle that results in clogged pores, pimples, papules, pustules and acne cysts. Acne can appear on any part of your face or body, but it is most commonly seen on the face, chest, back, and shoulders. While acne is often associated with teenagers going through puberty, it can affect people of all ages.



What Causes Acne?




A number of different factors or combinations of factors can contribute to acne. The main causes of acne include:



Skin cell buildup. Abnormal growth of skin cells leads to comedones (clogged pores), which can become pimples.




Bacterial growth. Cutibacterium acnes (a type of bacteria) colonizes (grows in) the blocked pores, making acne worse.



Inflammation. The hair follicle and surrounding area become inflamed, contributing to acne.




Hormonal influence. When androgens, a type of sex hormone, increase, skin cells grow faster, sebaceous (oil) glands grow, and oil production increases. All of these factors can contribute to acne.



Diet. Certain biochemical markers in the body, which can be influenced by what you eat, directly impact how severe your acne can become.




Skin Cell Buildup



The skin naturally sheds dead cells in a process called desquamation. However, in acne-prone skin, this process is sometimes disrupted due to abnormal growth of skin cells (keratinocytes), causing them to build up. These excess cells can accumulate on the surface of the skin and inside the pores, mixing with oil (sebum) and creating blockages known as comedones, or clogged pores. If the blocked pore becomes inflamed or infected with bacteria, it can develop into a pimple, pustule, or a cyst.




Bacterial Growth



Cutibacterium acnes (C. acnes), formerly known as Propionibacterium acnes (P. acnes), is a bacteria that lives on the skin. In healthy skin, this bacteria is harmless, but when it overpopulates the skin and becomes trapped inside clogged pores, it can multiply and cause acne.




C. acnes bacteria activates Toll-like receptor 2 (TLR-2) and causes inflammation. (Retinoids block activation of the TLR-2.)



undefined




Inflammation



Inflammation happens when your body’s immune system responds to the clogged pores and bacterial growth, leading to the redness, swelling, and sometimes pain that are characteristic of acne breakouts.




Hormonal Influence



Hormones play a significant role in the development of acne, particularly androgens, which are a group of hormones that include testosterone. During puberty, pregnancy, or even due to conditions like polycystic ovary syndrome (PCOS), androgen levels increase, which triggers several changes in the skin that can contribute to acne:




Faster growth of skin cells (keratinocytes). When this growth happens too quickly, dead skin cells don’t shed properly and begin to accumulate on the skin and clog pores, which can lead to breakouts.



Growth of sebaceous (oil) glands. The size and activity of sebaceous glands increase in response to increased androgen. Enlarged sebaceous glands produce even more oil, creating the perfect environment for acne to form.


Increased sebum (oil) production. As noted above, overactive oil glands produce excess oil, which can mix with dead skin cells and get trapped in the pores, contributing to acne.

How Do I Know If Hormones Are Causing My Acne?

Diet

Recent studies show that diet can have a significant affect on acne. In particular, sugary foods, simple carbohydrates, and dairy products (specifically skim milk) have the highest correlation with acne.

For example, increased sugar in the blood triggers IGF-1 (insulin-like growth factor 1), which affect your skin in these ways:

Stimulating oil production.

Increasing the availability of androgens (hormones that can worsen acne).

Promoting the growth of skin cells that can clog pores.

Skin Care Habits That Worsen Acne

Certain skin care habits can also cause acne to worsen or not respond well to treatment. If you are struggling with acne-prone skin, avoid these skin care mistakes to help your skin heal:

Using the wrong moisturizer, leading to dehydration. When your skin becomes dehydrated, it does not dequamate properly, causing a buildup of dead skin cells. Bacteria the moves in and this leads to acne.

Over-exfoliation. When you over exfoliate, it also interferes with desquamation and dead cells build up. (I know you think you are removing them, but over exfoliating actually speeds up desquamation).

Using comedogenic ingredients. Comedogenic ingredients are those that are known to create comodones, or clogged pores. Avoid these ingredients in skin care and personal care products to help reduce clogged pores.

Touching skin with dirty fingernails or using dirty makeup brushes. These habits increase bacteria on the skin, which can lead to acne.

Cosmetic procedures like dermaplaning, laser treatments, or deep peels. These also disrupt the skin’s natural keratinization and desquamation processes.

Facials. If done incorrectly, extractions push debris deeper into the skin, causing the skin to react which can result in an acne breakout, acne cysts, or epidermal inclusion cysts.

Skin purging from retinoids. “Skin purging” refers to an acne flare when you begin using a new ingredient such as retinol. If you do not gradually introduce a new retinoid into your skin care regimen, it can lead to breakouts.

Controversies on Acne Causes

There are some current controversies on the causes of acne:

Increased sebum. increased sebum alone does not cause acne. Studies have shown that it might not be increased sebum production that is the issue as much as it is the lipids in the sebum change (3).

pH changes. There is much misinformation about pH and skin. The skin’s pH level is crucial in maintaining a healthy skin barrier and preventing acne. A lower, more acidic pH (around 4.5 to 5.5) supports the growth of beneficial bacteria and keeps harmful bacteria like C. acnes in check (4). However, factors such as harsh cleansers or certain skincare products can disrupt the skin’s natural pH, making it more alkaline. This disruption can weaken the skin barrier, leading to increased sebum production, clogged pores, and a higher risk of acne.

Oily skin is not necessarily more likely to have acne. People often misjudge how much sebum their skin produces, especially those with acne, who tend to believe their skin is oilier than it actually is. A study measuring sebum levels using a validated tool, the Sebumeter SM 815®, found that individuals with acne significantly overestimated their skin’s oiliness compared to objective measurements. This highlights the importance of using accurate, validated methods to assess sebum production rather than relying on subjective opinions. Interestingly, while there was a difference in sebum levels on the nose, there was no significant difference in overall objective skin types between people with and without acne, even though their perceptions of their skin types differed (4, 5).

How to Treat Acne

Now that you know what causes acne, you are probably wondering how to get rid of it. The first step to managing acne and getting clearer skin is to use an acne skin care routine personalized for your Baumann Skin Type.

Generally speaking, however, to treat acne, you need to:

Hydrate your skin if it is dry.

Soothe inflammation.

Clear pores.

Inhibit toll like receptor 2 (TLR-2) with retinoids.

Turn on retinoic acid receptors with retinoids.

Normalize desquamation.

For personalized advice on getting rid of acne, find out your Baumann Skin Type and choose products that are right for your skin.

Take the Quiz

undefined

How Long Do Acne Treatments Take to Work?

Acne treatments take at least 8 weeks to work, assuming you are on the correct skin care routine for your skin type.

You can read here why you cannot clear acne fast.

Acne Skin Care Products and Treatments

Acne treatment products should be chosen based on which issues are causing your acne.

These are the 4 main issues that cause acne and the skin care products to target these issues.

1. Acne products that decrease oil production

No topical skin care products can decrease oil production. However, oil production can be reduced internally. Read more about that here.

Oily skin types can use a salicylic acid (SA) cleanser in the morning or a SA toner to can penetrate through the oil to clean out pores. Oily types can use a foaming cleanser at night to remove excess oil from the skin. if you have dry skin, salicylic acid may be too drying for your skin.

Choose a cleanser based on your Baumann Skin Type. Without knowing their skin type, most people choose the wrong cleanser which, can make it hard for you to use acne treatment products such as benzoyl peroxide and retinoids without getting side effects. The cleansers and moisturizers in your acne skin care routine will dramatically affect how well you tolerate any acne treatments.

Take the Quiz

2. Acne products that unclog pores

If you have comedones (clogged pores), make sure you avoid skin care products with comedogenic ingredients.

Salicylic acid (SA) cleans out clogged pores by removing the dead skin cells and sebum. Retinoids regulate the process of cells flaking off the skin, helping to prevent clogging of the pores. Benzoyl peroxide kills acne-causing bacteria that cause inflammation and clogged pores.

These skin care products to clear clogged pores can lead to dryness and flaking of the skin, but are an important part of acne treatment. It may be necessary to skip 1 to 3 days of these pore-unclogging skin care products if the skin becomes dry and irritated. These pore-clearing ingredients might not be right for your Baumann Skin Type, especially if you have dry or easily inflamed skin. Make sure you shop for acne products using your Baumann Skin Type.

undefined

3. Acne products to decrease bacteria

These treatments decrease acne bacteria:

Oral antibiotics and topical antibiotics

Benzoyl peroxide (BP)

Topical (not oral!) silver

Blue light

The bacteria that causes acne reproduces every 18 hours, so an antibacterial acne treatment should be used twice a day.

Your skin care routine needs an acne treatment product such as these below in your am and your pm skin care routine.

4. Antioxidants

Antioxidants can neutralize free radicals that are caused by porphyrins made by C. acnes bacteria. Some antioxidants also have anti-inflammatory abilities that can calm inflammation in the hair follicle.

What is the Best Skin Care Routine for Acne?

The best acne skin care routine for you should be customized for your skin type because it depends upon these issues:

Sebum secretion rates

Integrity of the skin barrier

Presence of underlying inflammation

How active the melanocytes are

Bottom Line

There are many factors that can cause acne, including skin cell buildup, bacterial growth, inflammation, hormonal changes, and diet. The best acne treatment regimens will address these specific issues that may be contributing to your acne. However, the best way to effectively treat acne is to use a personalized acne-fighting regimen designed for your skin type.

Don’t know your skin type? No problem! Take the quiz now to find out.

DQH Can I use salicylic acid first and then vitamin C? It’s easy to create a skincare routine, but knowing how to use it is another thing entirely. In most cases, if you’re not getting the desired skin results, it could be due to the layering of conflicting ingredients. So, is it possible that salicylic acid and vitamin C are such ingredients? Or are these active ingredients the duo that’s been missing from your skincare routine? If you want answers, stick around because today we are going to explain the benefits of salicylic acid and vitamin C and how they can be used in your daily life. What are the benefits of salicylic acid for skin? Salicylic acid is one of the most commonly used beta hydroxy acids and is favored by many people with oily, acne-prone skin. This acid is derived from willow bark, and unlike its water-soluble relatives (called alpha-hydroxy acids), salicylic acid is oil-soluble, which means it can penetrate deeper into the lower layers of the skin. Once it reaches the lower layers, it can help unclog pores of excess sebum, dirt, bacteria, debris, and impurities. This results in clearer skin tones and greater definition. Not only does salicylic acid benefit the underlying layers, but the outer surface of the skin benefits as well. When applied to the skin, salicylic acid removes the buildup of dead skin cells. This is accomplished by breaking the bonds that hold dead cells to the surface. Over time, this can cause the complexion to look dull and prone to acne, blackheads, and other blemishes. If you’d like to learn more about salicylic acid and how it can improve your skin, check out this dedicated blog post from a beauty insider. What are the benefits of vitamin C for skin? Vitamin C is considered one of the most powerful antioxidants, which means it is very effective at fighting free radicals and preventing them from causing further skin damage. Examples of free radicals include pollution, central heating, UV rays and harsh climate. They attack proteins, fats and cell membranes as soon as they come into contact with the skin, causing signs of premature aging such as fine lines and wrinkles as well as hyperpigmentation, flaky patches of skin and loss of elasticity. Many people usually prefer to use vitamin C in their morning routine as this ingredient gives the complexion a radiant glow. You’ll also find that vitamin C can target areas of hyperpigmentation, plumping the skin and reducing the appearance of fine lines and wrinkles. The thing about vitamin C is that there are a lot of outdated studies going back to the 1950s that describe vitamin C as an unstable skin component. Thanks to improvements in modern technology, this is no longer the case as all products now contain a stable form of vitamin C. Visit The Beauty Insider to learn more about vitamin C. So please check out our blog post. Can I use salicylic acid first and then vitamin C? Yes, you absolutely can. In fact, it’s thought that using salicylic acid before using vitamin C ensures it penetrates faster and works faster. This is an efficient way to utilize two power sources, and the reason has to do with pH. For example, the skin’s natural pH is about 4.7, making it slightly acidic. Salicylic acid and vitamin C are also both acidic, and you’ll find that vitamin C is absorbed quickly into the skin. Therefore, using salicylic acid beforehand can increase the acidity of the skin and allow vitamin C to penetrate into the skin faster. While this is considered an effective way to combine two powerful ingredients, you need to be aware of your skin type and how it reacts to certain active ingredients. Even people with perfect, normal skin can experience skin sensitivity and irritation. Therefore, always consult a doctor or dermatologist before using any new products on your skin. It’s also important to follow skin application rules. In this case, you need to use the product correctly to ensure you get the best results for your skin. If you’re not sure what I mean, the basic rule for skin is to start with the thinnest consistency and work your way up to the thickest consistency. This prevents a barrier from forming on the surface, preventing other active ingredients from penetrating the skin. Can I use salicylic acid at night and vitamin C in the morning? Yes, absolutely, this is considered the most effective way to get returns without any adverse side effects. This is because there is enough time between applications to ensure that the skin’s pH levels return to balance. You’ll also find that Vitamin C is rich in antioxidants and is perfect for use in the morning to ensure your skin is protected and looking its healthiest. Due to the small size of salicylic acid molecules, it is an acid that is able to reach the deepest parts of the skin. While this is effective at keeping skin clear, it also increases the risk of irritation and photosensitivity. Therefore, many people prefer to use powerful BHAs in their evening routine without exposure to UV rays, pollution, or harsh weather. Warning: If you avoid using sunscreen every day, none of these ingredients will do what your skin needs. The combination of chemical peels and powerful ingredients increases the risk of further damage to the skin’s surface. Use SPF 50 every day to keep your skin protected and your lipid barrier healthy, even on cloudy days, keeping your skin in top condition.
Share
Tweet
Email
Prev Article
Next Article

Related Articles

Best Dermatologist Recommended Treatment For Dark Spots On Face

Best Dermatologist Recommended Treatment For Dark Spots On Face

How to Incorporate Tamanu Oil into Your Rosacea Care regimen.

How to Incorporate Tamanu Oil into Your Rosacea Care regimen.

Recent Posts

  • Sesame Oil in Skin Care: Benefits, Uses, and Considerations for Your Skin
    Sesame Oil in Skin Care: Benefits, Uses, …
    8 May 2025 0
  • Understanding the 4 Subtypes of Sensitive Skin and How to Care for Them
    Understanding the 4 Subtypes of Sensitive Skin …
    8 May 2025 0
  • Essential Skincare Tips to Refresh and Rejuvenate Your Skin
    Essential Skincare Tips to Refresh and Rejuvenate …
    8 May 2025 0
  • Seborrheic Dermatitis: How to Tackle Itchy, Flaky Skin Naturally
    Seborrheic Dermatitis: How to Tackle Itchy, Flaky …
    8 May 2025 0
  • Scrubs, Exfoliants & Exfoliators: How to Choose the Right One for Your Skin
    Scrubs, Exfoliants & Exfoliators: How to Choose …
    8 May 2025 0

Popular Posts

  • Sesame Oil in Skin Care: Benefits, Uses, and Considerations for Your Skin
    Sesame Oil in Skin Care: Benefits, Uses, …
    8 May 2025 0
  • Understanding the Role of Fatty Acids in Skin Care and Barrier Repair
    Understanding the Role of Fatty Acids in …
    9 April 2025 0
  • The Importance of Fatty Alcohols in Skin Care Products
    The Importance of Fatty Alcohols in Skin …
    9 April 2025 0
  • Exploring the Benefits and Types of Ferments in Skincare
    Exploring the Benefits and Types of Ferments …
    9 April 2025 0
  • Ferulic Acid: A Powerful Antioxidant for Skin Protection and Repair
    Ferulic Acid: A Powerful Antioxidant for Skin …
    9 April 2025 0

Digital Clinic for Skin & Hair Care That Works!

Copyright © 2025 Digital Clinic for Skin & Hair Care That Works!
Theme by MyThemeShop.com

Ad Blocker Detected

Our website is made possible by displaying online advertisements to our visitors. Please consider supporting us by disabling your ad blocker.

Refresh