Seborrheic dermatitis can feel like an endless battle—itchy skin, redness, and those relentless flakes. If you’ve been searching for relief, you might have come across MCT oil. But does it actually help, or is it just another overhyped remedy?
This condition is often linked to Malassezia yeast, which thrives on certain oils and triggers inflammation. Unlike many other oils, MCT oil doesn’t feed this yeast, making it a promising option.
In this post, you’ll learn how MCT oil could help, how to use it effectively, and what to keep in mind before giving it a try.
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What Are MCTs and Why Are They Special?
Medium-chain triglycerides, or MCTs, are a type of saturated fat that’s gained attention in both health and skincare circles—and for good reason. Naturally found in coconut oil, palm kernel oil, and dairy products like milk and cheese, MCTs are unique because of their shorter carbon chains.
This structure makes them easier to absorb, both in the body and on the skin. Unlike long-chain fats, which take longer to digest, MCTs are quickly absorbed by the liver and converted into energy. This quick absorption also makes MCT oil lightweight and non-greasy, ideal for use in skincare and conditions like seborrheic dermatitis.
Breaking Down the Types of MCTs
Not all MCTs are created equal. They’re categorized by the number of carbon atoms in their structure, and this makes a big difference:
- Caproic Acid (C6): The shortest chain with six carbon atoms. While powerful, it’s rarely used in MCT oil because it has a strong, unpleasant smell.
- Caprylic Acid (C8): Made up of eight carbon atoms, C8 is a star ingredient for its antifungal and antibacterial properties. It’s one of the most effective fatty acids for tackling skin issues.
- Capric Acid (C10): With ten carbon atoms, C10 complements C8 by adding additional antimicrobial benefits. Together, they’re a dynamic duo for skin health.
- Lauric Acid (C12): While technically an MCT, this twelve-carbon fatty acid behaves more like a long-chain fat. It’s a food source for Malassezia yeast, so it’s best avoided if you’re managing seborrheic dermatitis.
When you see terms like “C8” or “C10” on a label, they’re telling you which fatty acids are in the oil. The shorter the chain, the quicker it absorbs and the more effective it is at fighting fungal and bacterial growth.
Why MCT Oil Matters for Seborrheic Dermatitis
Seborrheic dermatitis is driven by Malassezia yeast, which thrives on certain oils and fuels inflammation. MCT oil, especially those rich in caprylic (C8) and capric (C10) acids, offers a safer alternative. Unlike many oils, studies have shown that MCT oil suppresses Malassezia growth, making it effective for managing this condition.
To get the best results, choose a lauric acid-free MCT oil. This ensures you’re targeting the yeast without risking flare-ups, making MCT oil a safe and effective choice for managing seborrheic dermatitis.
Related: Benefits of Using Caprylic Acid for Seborrheic Dermatitis
Does MCT Oil Really Help with Seborrheic Dermatitis?
Absolutely. There’s solid evidence that MCT oil can make a real difference for managing seborrheic dermatitis. Here’s why:
1. It Targets Malassezia Yeast
MCT oil’s medium-chain fatty acids, especially caprylic and capric acids, have been shown to inhibit the growth of Malassezia yeast—the main culprit behind those itchy, inflamed patches. One study found these fatty acids are toxic to Malassezia, making MCT oil an effective choice for controlling this yeast.
2. Antifungal and Anti-Inflammatory Power
MCT oil doesn’t just stop yeast in its tracks—it also works to reduce the inflammation and irritation that make seborrheic dermatitis so frustrating. Its antifungal properties cut off Malassezia’s food supply, while its anti-inflammatory effects help soothe redness and calm irritated skin.
3. A Dual-Action Solution
By combining antifungal and anti-inflammatory benefits, MCT oil tackles the issue at its root. Unlike oils that fuel yeast growth, MCT oil creates an environment that makes it harder for Malassezia to thrive, while also promoting a calmer, healthier skin barrier.
While more research will help us fully understand all the ways MCT oil works, the evidence we have so far is clear: MCT oil is one of the safest, most effective natural remedies for managing seborrheic dermatitis.
How to Use MCT Oil for Seborrheic Dermatitis
Using MCT oil is simple, but getting the best results requires a bit of technique. Here’s how to incorporate it into your routine for both your scalp and face.
For the Scalp: Nourish Without Overloading
To use MCT oil on your scalp, start with a small amount—just enough to lightly coat the affected area. Apply the oil directly to your scalp, focusing on the patches with redness or flakes. Gently massage it in with your fingertips for a few minutes to help it penetrate.
How Long to Leave MCT Oil On:
- For mild cases, leave the oil on for at least 30 minutes before washing it out.
- For deeper hydration and better results, consider leaving it on overnight. To prevent staining your pillow or sheets, wrap your hair in a soft cloth or wear a shower cap.
After the treatment, wash your hair thoroughly with a gentle, sulfate-free shampoo to remove any residue. If you’re using a medicated shampoo for seborrheic dermatitis, such as one containing ketoconazole, combining the two can provide additional benefits.
Start by using MCT oil on your scalp twice a week and adjust based on how your skin responds. Consistency is key to seeing results.
For the Face: Calm and Protect
Applying MCT oil to your face requires a more delicate approach. Cleanse your skin first with a mild, non-irritating cleanser, then pat it dry.
Take a drop or two of MCT oil and gently press it onto the affected areas, such as the sides of your nose, eyebrows, or any flaky patches. Avoid rubbing too hard, especially if your skin is sensitive or already irritated.
If you have very reactive skin, patch test the oil on a small area first to make sure it doesn’t cause irritation. Start with once-daily use, ideally in the evening, and increase to twice a day if your skin tolerates it well.
Monitor and Adjust
Consistency is key when using MCT oil. Give it at least a couple of weeks to see noticeable improvements, but keep an eye on your skin’s reaction. If you experience any discomfort or clogged pores, scale back your usage or consult a dermatologist for guidance.
With regular use, MCT oil can become a simple yet effective part of your seborrheic dermatitis management routine—whether you’re treating your scalp, face, or both.
What to Look for in MCT Oil for Seborrheic Dermatitis
Choosing the right MCT oil can make all the difference in keeping flare-ups under control.
- Lauric Acid-Free: Look for labels stating “100% caprylic/capric triglycerides.” Remember, lauric acid is a longer-chain fatty acid that can feed Malassezia yeast, potentially worsening seborrheic dermatitis symptoms.
- Ingredient Purity: Choose fractionated coconut oil or pure MCT oil.
- Minimal Processing: Opt for cold-pressed or chemical-free formulations.
Best MCT Oil Options
If you’re unsure where to start, here are a few reputable options that work well for seborrheic dermatitis:
- Viva Naturals Organic MCT Oil: Fractionated coconut oil made with 100% caprylic and capric acids, ideal for sensitive skin.
- Bulletproof Brain Octane Oil: A premium product with ultra-pure C8 (caprylic acid) triglycerides.
While any high-quality, lauric acid-free MCT oil can work, stick with well-reviewed brands to ensure you’re getting a product that’s safe and effective.
Are There Any Downsides to Using MCT Oil?
While MCT oil is lightweight and generally safe, it’s not entirely foolproof. Here are a few considerations before adding it to your routine.
Too Much of a Good Thing
MCT oil is unlikely to clog pores for most people, thanks to its quick absorption and non-greasy feel. However, overusing it or applying it to naturally oily areas could leave your skin feeling slightly greasy. Moderation is key—use only a small amount and see how your skin reacts.
Allergies and Sensitivities
Though rare, some people may experience irritation or an allergic reaction. If you notice redness, itching, or discomfort after applying it, stop use and consult a dermatologist.
The Patch Test Rule
To avoid surprises, always patch test before applying MCT oil to larger areas. Apply a small amount to a discreet patch of skin, like your inner arm or behind your ear, and wait 24 hours to check for any reaction.
By keeping these points in mind, you can enjoy the benefits of MCT oil with minimal risk.
Does MCT Oil Work for Everyone?
MCT oil can be a game-changer for many people dealing with seborrheic dermatitis, but like any treatment, it’s not a one-size-fits-all solution.
Why Results Can Vary
Skin is highly individual, and factors like your unique skin type, the severity of your condition, and how consistently you use MCT oil can all affect the outcome. While many find relief with MCT oil, others may not notice significant changes, especially if their seborrheic dermatitis is triggered by factors beyond Malassezia overgrowth.
Beyond MCT Oil: Managing the Bigger Picture
Seborrheic dermatitis is a complex condition, often influenced by a mix of internal and external factors. Diet plays a big role—foods that trigger inflammation, like sugar or processed carbs, can make symptoms worse. Stress is another common culprit, as it can throw your skin’s natural balance out of whack.
Other treatments, such as antifungal shampoos, medicated creams, or even prescription therapies, may also be necessary to fully control flare-ups. Think of MCT oil as a valuable piece of the puzzle rather than the whole solution.
If you’re not seeing results with MCT oil alone, it may be worth speaking with a dermatologist to explore additional treatment options tailored to your needs.
Should You Try MCT Oil for Seborrheic Dermatitis?
MCT oil is a simple, natural option that could bring real relief to your skin. Its unique properties make it a standout choice for tackling the root cause of seborrheic dermatitis. While it’s not a cure-all, it’s easy to use and worth adding to your routine.
If you’re dealing with severe or stubborn symptoms, a quick chat with a dermatologist can help you figure out the best plan forward. But for many, MCT oil might just be the gentle boost their skin needs.
More Articles about Seborrheic Dermatitis:
Apple Cider Vinegar For Seborrheic Dermatitis
Ingredients and Products to Avoid for Seborrheic Dermatitis
Is Azelaic Acid Good for Seborrheic Dermatitis?
Hyaluronic Acid: A Natural Solution for Seborrheic Dermatitis?
The Seborrheic Dermatitis Diet: Foods to Avoid and Foods to Eat
Best Natural Oils for Seborrheic Dermatitis
Salicylic Acid for Seborrheic Dermatitis: Everything You Need to Know
Petra Nakashian (previously Kravos) is a dedicated natural health and beauty blogger, driven by the loss of her parents to cancer, which led her to meticulously research beauty product ingredients. With over 10 years of experience, her in-depth knowledge has made her a trusted expert in the field. Founder of Be Healthy Now and Green Beauty Talk, Petra recently expanded her expertise with Beauty Insights Hub, exploring a wider range of beauty treatments. Committed to transparency and honesty, her work is a vital resource for navigating the complex world of beauty.