Get hands-on Botox® training in sunny Scottsdale, Arizona! The next Aesthetic Medicine Symposium runs September 5-8.

Home »Skincare Library » Does Dairy Cause Acne? A Look at Acne and Hormones in Milk

Does Dairy Cause Acne? A Look at Acne and Hormones in Milk

For patients and professionals alike, the connection between diet and skin health is a topic of growing interest. Among dietary factors, dairy products—such as milk, cheese, and yogurt—are often discussed as possible triggers for acne. But does dairy truly cause acne, or is this belief more myth than fact? We will explore the science behind dairy, acne, inflammation, and the impact of hormones in milk to help medical aesthetic clinics and their clients make informed choices.

Does Dairy Cause Acne

What Is Acne?

Acne is a common inflammatory skin condition, affecting teenagers and adults alike. It develops when hair follicles become clogged with oil (sebum) and dead skin cells, leading to whiteheads, blackheads, pimples, and even cystic lesions. Genetics, hormonal fluctuations, lifestyle, and environmental factors can all contribute to the risk and severity of acne.

Learn to Start a Profitable Aesthetics Practice in Just 4-Days!

June 6-9 (only 5 spots left!)

in sunny Scottsdale, AZ

Make More. Work Less.

Start your transitioning to aesthetic medicine and learn everything you need to grow a profitable aesthetics practice in just 4-days! 

September 5-8
Scottsdale, AZ

Only $4,195*
(Reg. $7,500. Save $3,605!)
Earn 33.5 CMEs

*Members preferred price for 4-day accelerated program. Save $3,605! Membership is only $295/yr and can be added during registration. Add a friend or team member and save $1,000 more on their 4-day registration!

Could Dairy Cause Acne?

The possible link between dairy consumption and acne has been explored in professional literature for decades. While research does not show that dairy causes acne in everyone, there is mounting evidence that for some individuals, dairy consumption may exacerbate existing acne or contribute to breakouts.

1. Epidemiological Evidence

Several large studies have identified an association between dairy intake and increased acne prevalence, particularly in teenagers and young adults. Interestingly, skim milk seems more strongly associated with breakouts than whole milk or cheese. However, these studies cannot conclusively prove that dairy “causes” acne; they only suggest a correlation.

Is All Dairy Created Equal?

When discussing the relationship between dairy and acne, it’s essential to understand that not all dairy products affect the skin in the same way. The type of dairy, how it’s processed, and its composition in terms of protein, fat, and the presence of live cultures can all influence its potential impact on acne.

Milk and Acne

Research has consistently pointed to milk—especially skim milk—as the dairy product most closely associated with acne breakouts. Several large observational studies have found a higher prevalence of acne in individuals who consume more milk compared to those who consume less or none.
Why might milk have a stronger link to acne?

  • Higher Insulin Response: Milk, especially low-fat or skim milk, can cause a higher insulin spike compared to whole milk. This increase in insulin may boost sebum production and trigger hormonal changes related to acne.
  • Hormonal Content: Cows’ milk naturally contains hormones such as IGF-1 (Insulin-Like Growth Factor 1) and androgens, which can survive pasteurization and enter the human body through digestion, potentially exacerbating hormonal acne.
  • Protein Composition: Skim milk, due to the removal of fat, has a relatively higher concentration of proteins like whey and casein. These proteins may further stimulate IGF-1 release in the body.

Cheese and Acne

Generally, cheese and yogurt are less often linked to acne than milk. The reasons are likely multifactorial:

  • Fermentation & Processing: Most cheeses are made via fermentation and aging, which may alter or degrade some hormones and milk proteins implicated in acne.
  • Fat Content: Cheese typically contains more fat and less whey protein compared to milk, which could make it less likely to impact insulin or IGF-1 to the same degree.xacerbating hormonal acne.

Yogurt and Acne

  • Presence of Live Bacteria: Yogurt, particularly those with live and active cultures (probiotics), have unique effects in the gut. Some studies suggest that probiotics can reduce systemic inflammation, potentially benefiting individuals with inflammatory skin conditions like acne.
  • Protein and Sugar Content: While yogurt does have protein, it usually contains less whey protein than milk. However, many commercial yogurts are high in added sugars, which can contribute to acne through other pathways.

Greek Yogurt and Acne

  • Greek yogurt is higher in protein (but lower in whey) and often contains beneficial probiotics, making it less likely to aggravate acne in many people.

Fermented Dairy: Yogurt and Kefir and Acne

Fermented dairy products like yogurt and kefir deserve special mention due to their probiotic content:

  • Probiotics and Inflammation: Probiotics found in fermented dairy can support gut health, reduce systemic inflammation, and potentially modulate the skin’s immune response, all of which are beneficial for acne management.
  • Gut-Skin Axis: Emerging research suggests a relationship between gut microbiome health and skin inflammation. Consuming probiotics may help “balance” the immune system, leading to fewer inflammatory skin issues.
  • Lower Hormonal Impact: Fermentation may reduce the levels of certain bioactive hormones in dairy, further diminishing any direct hormonal stimulation that might trigger acne.

Fermented Dairy: Yogurt and Kefir and Acne

Summary Table: Dairy Products and Their Link to Acne
Dairy Product Acne Link Reasoning/Notes
Milk (esp. skim) Most linked Higher IGF-1, more hormones, processed proteins, high insulin response
Cheese Less linked Fermentation, higher fat, less whey protein, lower hormonal impact
Yogurt/Kefir Least linked* Presence of probiotics, potential anti-inflammatory effects, lower whey

*Note: High-sugar yogurts may still be problematic for acne-prone individuals due to the effects of added sugar on insulin and inflammation.

In summary, not all dairy products have the same effect on acne risk:

  • Milk, particularly skim milk, stands out as the most likely culprit based on current evidence, mainly due to its hormonal load, protein content, and insulinogenic effects.
  • Cheese and fermented dairy products like yogurt and kefir may pose less risk and could even offer protective benefits through probiotics, provided they are low in added sugars.

For medical professionals and consumers, these nuances can guide more personalized dietary recommendations for individuals struggling with acne.

The Mechanisms: How Might Dairy Affect Acne?

Acne, Inflammation, and Milk.

One way dairy may contribute to acne is by promoting low-grade inflammation in the body. Some people may have a sensitivity to dairy proteins, such as casein or whey, which can lead to an immune response and increased inflammatory markers. Because acne is essentially an inflammatory disorder, anything that increases inflammation may worsen symptoms.

Key Points:
  • Dairy proteins can stimulate the body’s immune system, potentially increasing inflammation.
  • Insulin and IGF-1 levels: Milk consumption can raise levels of insulin and insulin-like growth factor-1 (IGF-1). Both of these hormones boost sebum production and keratinocyte growth—factors known to aggravate acne.

Acne and Hormones in Milk

Probably the most significant factor tying milk to acne is its hormone content. Cows’ milk naturally contains a variety of hormones, including androgens and growth hormones, some of which survive the pasteurization process and end up in the final product.

Who Is Most Likely to Be Affected?

  • Adolescents and Young Adults: Because of naturally high hormone levels and IGF-1 during puberty, this group may be more susceptible to the effects of dairy.
  • People with a Family History: Certain genetic factors can make some individuals more sensitive to dairy’s inflammatory or hormonal effects.
  • Those with Existing Acne: If breakouts seem to worsen with dairy, it may be a personal trigger.

Should Patients Avoid Dairy?

It’s important to remember that not everyone who consumes dairy will develop acne, and for some, dairy is a valuable source of nutrition. However, for patients with persistent or stubborn acne, an elimination diet supervised by a healthcare provider can help determine if dairy is a personal trigger.

The Fastest Way to Get Certified in Botox® & Aesthetic Medicine

On-Demand Training with the IAPAM Learning Lab

Sign up today and expand your knowledge & skills in Botox®, Fillers, Lasers,
Chemical Peels, Microdermabrasion and PRP for Aesthetics!

Conclusion

The connection between dairy and acne is complex, involving potential inflammatory and hormonal influences found in milk and milk products. While dairy does not cause acne for everyone, individuals prone to breakouts—especially teenagers, those with hormonal imbalances, or adults with treatment-resistant acne—may find a reduction or elimination beneficial. Medical aesthetic clinics can play a pivotal role in guiding patients toward evidence-based dietary choices for optimal skin health.

Disclaimer: The information provided here is for general knowledge only and should not be considered medical advice. For any questions or concerns about your health or medications, please consult your physician or healthcare provider. They are best equipped to provide guidance specific to your medical needs.

Related Articles

A woman receive a microneedling treatment

Our Skincare Library (FAQ’S)

In order to have a successful aesthetic practice, you need to have effective advertising to attract people to your business.

This includes spending those marketing dollars effectively and having a team of staff that are well informed.

Read More »
pore clogging checker

Pore Clogging Checker: Ingredients List

In order to have a successful aesthetic practice, you need to have effective advertising to attract people to your business.

This includes spending those marketing dollars effectively and having a team of staff that are well informed.

Read More »
dermaplanning acne

Does Dermaplaning Cause Acne?

In order to have a successful aesthetic practice, you need to have effective advertising to attract people to your business.

This includes spending those marketing dollars effectively and having a team of staff that are well informed.

Read More »
No Botox® Experience Required. Gain the Confidence to Start Seeing Patients Right Away!
Attend the Aesthetic Medicine Symposium and learn everything you need to start practicing right away.

Attend the most comprehensive accredited AMA PRA CAT 1 CME Botox® training weekend, learn how to create a profitable practice with the top 5 most lucrative non-invasive treatments, get hands-on Botox® training in a multi-million dollar aesthetics practice and get trained in GLP-1 agonists and other medically-supervised weight loss treatments.

Hands-on Botox® Training for Physicians
September 5-8

Scottsdale, Arizona 

Save $3,605 when you become an IAPAM member and register to attend all 4-days!