The Skincarma Pod | Ep. 72: Dr. Katie Varman on the Gut-Skin Connection & What’s Really Causing Your Acne

Acne is often treated as a surface-level problem — something to be managed with cleansers, serums, and spot treatments.

But what if acne isn’t primarily a skincare issue at all?

What if it’s a signal of deeper imbalances happening inside the body?

In this episode, Carmine sits down with returning guest Dr. Katie Varman, a board-certified dermatologist who combines conventional dermatology with a functional, root-cause approach to skin health.

Together, they explore the gut–skin connection — and how diet, the microbiome, inflammation, hormones, and even environmental exposures can influence the development and persistence of acne.

At the center of the conversation is Dr. Varman’s new program, Clear Skin From Within — a three-month course designed to guide participants through elimination, reintroduction, and optimization phases to better understand what’s driving their breakouts.

Rather than focusing on topical solutions, this episode reframes acne as a systemic condition — and offers a more comprehensive, inside-out approach to healing.

You’ll learn:

• Why acne is more complex than oil, bacteria, and clogged pores;• How diet and high-glycemic foods influence inflammation and hormone pathways;• The role of the gut microbiome — and how “good” bacteria support skin health;• What chronic, low-grade inflammation is — and how it shows up on the skin;• Why eliminating dairy, sugar, and processed foods can make a measurable difference;• How environmental factors like plastics, BPA, and artificial fragrance may contribute to acne;• The importance of fiber, spices, and fermented foods in restoring gut balance;• Why skincare alone often isn’t enough — especially for deeper, more persistent breakouts;• And, how estheticians can play a critical role in bridging internal and external care.

Key takeaway:

Acne isn’t just a product problem — it’s a systems problem.And while topical skincare has its place, lasting change often requires looking inward — at the gut, the diet, the environment, and the underlying drivers that the skin is trying to reveal.

Connect with Dr. Katie Varman on LinkedIn at Shine Skin Academy and on Instagram and TikTok. Explore the Clear Skin From Within program here and enjoy a complimentary Gut-Skin Lesson here.

Follow Skincarma on Instagram and on TikTok. Catch product reviews of Carmine’s top picks of the best skincare on the Skincarma Blog. You can also connect with Carmine on Substack and LinkedIn – and explore his extensive work in beauty on the Carmine Montalto INK website here.

If you enjoyed this episode, please subscribe, rate and/or leave a review on Apple Podcasts, Substack, or Spotify to help Carmine reach more curious listeners.

Product reviews on the Skincarma Blog:

Explore the Best Sunscreens for Face here.

Explore the Best Retinol Face Creams and Serums here.

Explore the Best Vitamin C Serums here.

Explore the Best Niacinamide Serums here.

Explore the Best Acne Treatments here.

Explore the Best Anti-Aging Creams and Serums here.

Explore the Best Face Creams for Dry Skin here.

Explore the Best Face Creams for Oily Skin here.

The Skincarma® Pod is where indie beauty meets fearless curiosity. Hosted by Carmine, his podcast pulls back the curtain on the beauty industry with sharp insights, candid interviews, and a healthy dose of irreverence. From deep dives into ingredient science to raw conversations with dermatologists, brand founders, and industry insiders, each episode is a no-BS exploration of what really matters in skincare: how to attain and maintain healthy skin. If you’re obsessed with products, passionate about transparency, and love calling out hype, this is the place to learn, question, and glow smarter.

The Skincarma® Blog is written and curated by skinfluencer, skincare junkie and Brooklyn writer Carmine Montalto. With 25 years of expertise in beauty across every category, Carmine has helped build multiple consumer brands from the ground up. He’s named 100s of skincare, haircare & makeup products – some of which are probably in your bathroom cabinet right now! And, he’s tested 1,000s of products, the best of which can be found reviewed on his blog at skincarma.com.

With the right skincare routine including sunscreen...You CAN change your skin’s destiny!™

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