Last updated: 1-23-2026 | Reviewed by Dr. Chris Jackson, PharmD
For centuries, people have turned to natural remedies to support respiratory wellness, and mullein for asthma support has become an increasingly popular topic among those seeking complementary approaches to breathing health. This fuzzy-leaved plant, known scientifically as Verbascum thapsus, has a rich history in traditional herbalism—but what does modern science actually say about its potential benefits?
If you're curious about whether mullein leaf might support your respiratory wellness alongside your current asthma management plan, you're in the right place. Let's explore what researchers have discovered about this ancient herb and how it may fit into a comprehensive approach to lung health.
Table of Contents
- Understanding Mullein: A Brief Overview
- What Research Says About Mullein and Respiratory Health
- How Mullein May Support Clear Airways Naturally
- Important Considerations for Asthma Management
- Ways to Incorporate Mullein Into Your Wellness Routine
- Frequently Asked Questions
Understanding Mullein: A Brief Overview
Mullein is a flowering plant native to Europe, Asia, and North Africa that has naturalized throughout North America. Recognizable by its tall flower spikes and soft, velvety leaves, mullein has been used in traditional medicine systems for thousands of years.
According to ethnobotanical research published in the Journal of Ethnopharmacology, mullein was traditionally used by Indigenous peoples and European settlers alike to support respiratory comfort. The leaves were commonly prepared as teas, tinctures, and even smoked in some traditions to soothe the airways.
Today, mullein for lungs remains a subject of scientific interest. Modern research has begun investigating the compounds within mullein that may contribute to its traditional uses, including:
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Saponins: Natural compounds that may help support mucus clearance
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Flavonoids: Antioxidant compounds with potential inflammation support properties
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Iridoids: Bioactive compounds studied for various wellness benefits
- Polysaccharides: Complex carbohydrates that may help soothe respiratory tissues
What Research Says About Mullein and Respiratory Health
While large-scale clinical trials specifically examining mullein for asthma are limited, several studies have explored the herb's potential respiratory benefits.
Laboratory and Animal Studies
A 2010 study published in Phytotherapy Research examined mullein extracts and found that certain compounds demonstrated anti-inflammatory activity in laboratory settings. The researchers noted that these findings align with the plant's traditional use for respiratory complaints.
Research from 2020 published in Biomolecules identified verbascoside, a key compound in mullein, as having notable antioxidant properties. Oxidative stress is increasingly recognized as a factor in respiratory wellness, making this finding particularly relevant.
Traditional Use Evidence
A comprehensive review in the Journal of Ethnopharmacology documented mullein's widespread traditional use across multiple cultures for supporting respiratory comfort. While traditional use doesn't constitute clinical proof, it provides valuable context for understanding why researchers continue studying this plant.
Current Scientific Consensus
It's important to note that the scientific community has not established mullein as a treatment for asthma or any respiratory disease. The existing research, while promising, consists primarily of laboratory studies and traditional use documentation rather than rigorous human clinical trials.
How Mullein May Support Clear Airways Naturally
Understanding how mullein might offer breathing support requires looking at its proposed mechanisms of action.
Mucilage Content
Mullein leaves contain mucilage—a gel-like substance that may help soothe irritated tissues. This property has led herbalists to use mullein preparations to support throat and respiratory comfort.
Saponin Activity
The saponins in mullein are thought to have mild expectorant properties, potentially supporting the body's natural mucus clearance processes. According to research published in Planta Medica, plant saponins can influence mucus viscosity and clearance.
Inflammation Support
Several compounds in mullein, particularly flavonoids and verbascoside, have demonstrated antioxidant activity in laboratory settings. By supporting the body's response to oxidative stress, these compounds may contribute to overall respiratory wellness.
Antimicrobial Properties
A 2002 study found that mullein extracts showed activity against certain microorganisms in laboratory conditions. This research, while preliminary, suggests another potential avenue for respiratory support.
Important Considerations for Asthma Management
If you have asthma, working closely with your healthcare provider is essential. Here's what you need to know:
Mullein is not a replacement for prescribed asthma medications. Asthma is a serious medical condition that requires proper medical management. Rescue inhalers, controller medications, and other treatments prescribed by your doctor remain the foundation of asthma care.
Always consult your healthcare provider before adding supplements. Doctor-formulated supplements like those from Betterbrand are designed with safety in mind, but individual health situations vary. Your doctor can help you determine if mullein supplementation is appropriate for your specific circumstances.
Watch for potential interactions. While mullein is generally considered safe for most adults, it may interact with certain medications. Discuss any supplements with your pharmacist or physician.
Quality matters. Not all mullein products are created equal. Look for supplements that are third-party tested, manufactured in GMP-certified facilities, and formulated by qualified professionals.
Ways to Incorporate Mullein Into Your Wellness Routine
For those interested in exploring mullein for respiratory wellness (with their healthcare provider's approval), several options exist:
Mullein Gummies
BetterLungs gummies offer a convenient, pleasant-tasting way to incorporate mullein leaf extract into your daily routine. With 2000mg of mullein per serving in a pear-flavored gummy, they're an easy option for people who prefer not to swallow capsules.
Mullein Tincture
A mullein tincture provides fast absorption and flexibility in dosing. BetterLungs Mullein + Chlorophyll Drops combine a potent 10:1 mullein extract (equivalent to 2800mg) with chlorophyll for additional antioxidant support.
BetterLungs Capsules
For comprehensive respiratory support, BetterLungs capsules combine mullein leaf with other researched ingredients like NAC, Vitamin D, elderberry, and maritime pine bark extract. These doctor-formulated supplements were created by Dr. Chris Jackson, PharmD, to support lung health through multiple pathways.
Herbal Tea
BetterLungs Detox Tea offers a soothing caffeine-free option featuring mullein alongside complementary herbs like thyme, ginger, and elderberry—perfect for an evening wellness ritual.
Frequently Asked Questions
Is mullein safe for people with asthma?
Mullein is generally considered safe for most adults when used appropriately. However, if you have asthma or any respiratory condition, you should always consult your healthcare provider before starting any new supplement. Mullein should never replace prescribed asthma medications or treatments.
How long does it take to notice benefits from mullein supplements?
Individual responses vary significantly. Some people report noticing respiratory comfort within days, while others may take several weeks of consistent use. In Betterbrand's clinical trial of Mullein + Chlorophyll Drops, participants reported improvements over a 60-day period, with 81% experiencing less frequent coughing and 77% reporting clearer airways.
Can I take mullein alongside my asthma medication?
You should discuss this with your healthcare provider or pharmacist before combining mullein with any medications. While no significant interactions are commonly reported, your healthcare team can provide guidance based on your specific medications and health situation.
What's the best form of mullein for respiratory support?
The best form depends on your preferences and lifestyle. Mullein gummies offer convenience and taste, while a mullein tincture may provide faster absorption. Capsules offer precise dosing and additional complementary ingredients. All forms can support respiratory wellness when taken consistently.
Are there any side effects of mullein?
Mullein is generally well-tolerated. Some people may experience mild digestive upset. Those with allergies to plants in the Scrophulariaceae family should use caution. If you experience any adverse effects, discontinue use and consult your healthcare provider.
Conclusion
While research on mullein for asthma specifically remains limited, the existing science supports this traditional herb's potential role in respiratory wellness. With its saponin content, antioxidant compounds, and soothing mucilage, mullein offers an interesting natural option for those looking to support their lung health.
For high-quality, doctor-formulated mullein supplements backed by third-party testing and a 365-day money-back guarantee, explore Betterbrand's BetterLungs collection—trusted by over 836,000 customers and available at CVS, Walgreens, and GNC.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Always consult your healthcare provider before starting any new supplement.
Sources
- Journal of Ethnopharmacology - Traditional Uses of Mullein - Documentation of mullein's historical use in traditional medicine systems
- Phytotherapy Research - Anti-inflammatory Activity of Verbascum - Laboratory study on mullein's anti-inflammatory compounds
- Biomolecules - Verbascoside Antioxidant Properties - 2020 research on mullein's key bioactive compounds
- Planta Medica - Plant Saponins and Respiratory Health - Research on saponins and mucus clearance
- National Center for Complementary and Integrative Health - General guidance on herbal supplement safety