Mullein Tea: 7 Benefits, Uses, Side Effects & How To Brew

Mullein tea, derived from the leaves and flowers of the Verbascum thapsus plant, has been used for centuries in traditional medicine to address respiratory issues, inflammation, and other ailments. Native to Europe, Africa, and Asia, this biennial herb features tall flower spikes and fuzzy leaves, earning it names like “velvet dock” or “lungs wort.” While test-tube and animal studies suggest benefits like mucus-loosening and antimicrobial effects, human clinical trials remain limited, emphasizing the need for caution and professional medical advice.

What Is Mullein Tea?

Mullein tea is a caffeine-free herbal infusion brewed from the dried leaves, flowers, or roots of the common mullein plant (Verbascum thapsus). This plant thrives in disturbed soils and has over 2,500 species in its genus, but V. thapsus is the most commonly used for tea. Historically, mullein has been employed by Native Americans, Europeans, and in folk medicine for coughs, wounds, and infections. Its mild, earthy flavor makes it palatable, often enhanced with honey or lemon. Active compounds include saponins (antimicrobial and anti-inflammatory), flavonoids (antioxidant), iridoid glycosides (neuroprotective), phenylethanoid glycosides (antibacterial), quercetin (anti-inflammatory), and vitamin C (immune support).

These phytochemicals contribute to mullein’s reputed effects, though modern science primarily supports traditional claims through in vitro and animal research rather than large-scale human studies.

Potential Health Benefits of Mullein Tea

Traditional uses of mullein tea span respiratory, immune, skin, digestive, and circulatory health. While promising, most evidence is anecdotal or preliminary; consult a healthcare provider before use, especially for chronic conditions.

Respiratory Health

Mullein tea is most celebrated for supporting lung and airway health. It acts as an expectorant, helping loosen mucus in conditions like coughs, colds, bronchitis, asthma, flu, hoarseness, and tonsillitis. Anti-inflammatory and antispasmodic properties may soothe irritated airways, reducing wheezing and shortness of breath. A 2012 animal study indicated antispasmodic effects that could relax respiratory muscles, while a 2005 study in Phytotherapy Research showed expectorant and bronchodilatory actions in models.

Traditionally, it’s used for chronic coughs and allergies by calming inflammation and fighting germs. However, human trials are scarce, and it’s not a substitute for prescribed asthma treatments.

Anti-Inflammatory Effects

Compounds like flavonoids, saponins, and quercetin in mullein tea may reduce inflammation throughout the body. This supports its use for general wellness, akin to herbs like chamomile or aloe. Potential applications include arthritis, wounds, and inflammatory skin issues, though clinical confirmation is needed.

Immune Support

Antioxidants and vitamin C in mullein bolster immunity, potentially aiding recovery from colds, flu, and infections like tuberculosis or urinary tract issues in traditional contexts. Antimicrobial saponins exhibit antiviral, antibacterial, and antifungal activity in lab tests, combating food poisoning bacteria and parasites.

Skin Health

Topically or via tea, mullein may benefit eczema, acne, burns, ulcers, cysts, and insect bites due to its anti-inflammatory and antibacterial properties. Studies suggest it protects against skin inflammation and nail conditions.

Digestive Aid

Mullein tea traditionally eases diarrhea, constipation, gastric ulcers, liver inflammation, and gallstones. Its antispasmodic effects might reduce cramping, with lab evidence against gut pathogens.

Circulatory and Pain Relief

Animal studies hint at cholesterol-lowering and blood pressure benefits, potentially reducing hemorrhoids and varicose veins. Analgesic properties may alleviate migraines, toothaches, earaches, and gum boils.

Other Potential Benefits

• Antioxidant Protection: Neutralizes free radicals to prevent cellular damage.
• Anticancer Hints: Test-tube studies show activity against cancer cells.
• Neuroprotective: May shield brain cells and reduce neurological risks.

Nutrients like potassium, magnesium, zinc, and fatty acids add value, though tea extracts fewer fats.

How to Make Mullein Tea

Brewing mullein tea is simple and requires dried leaves or flowers (1-2 teaspoons per cup). Use a cold infusion for delicate compounds or hot steep for quicker results. Always strain through cheesecloth or a fine mesh to remove fuzzy hairs, which can irritate the throat.

Hot Infusion Method

1. Boil 1 cup water.
2. Add 1-2 tsp dried mullein leaves/flowers.
3. Steep 10-15 minutes covered.
4. Strain thoroughly.
5. Add honey, lemon, or ginger for taste.

Cold Infusion (for Chronic Coughs)

1. Place 1-2 tsp dried herb in 1 cup cold water.
2. Infuse 4-12 hours in fridge.
3. Strain and warm if desired.

Dosage: 1-3 cups daily, not exceeding 1 week without guidance. Source organic, pesticide-free herbs.

Nutrition Facts

Mullein tea is low-calorie (near 0 kcal/cup) and rich in bioactive compounds rather than macronutrients. Key contributors:

Exact amounts vary by preparation; it’s not a significant calorie or macro source.

Safety and Side Effects

Generally safe in moderation, mullein tea may cause:

• Throat/ GI Irritation: From tiny hairs; always strain well.
• Skin Rash: Rare contact dermatitis.
• Drug Interactions: May affect diuretics, blood thinners, or diabetes meds.

Contraindications: Avoid if pregnant/breastfeeding, due to insufficient safety data. Not for those with liver/kidney issues or on sedatives. Discontinue if adverse effects occur. The FDA does not regulate herbs; choose third-party tested products.

Who Should Avoid Mullein Tea

• Pregnant or nursing individuals.
• Children under 12 without pediatrician approval.
• Those with allergies to Scrophulariaceae family plants.
• People on medications affecting blood sugar, pressure, or coagulation.

Consult a doctor for underlying conditions.

FAQs

Is mullein tea good for a cough?

Yes, traditionally used as an expectorant for dry, hacking coughs, though evidence is mostly preclinical.

Can you drink mullein tea every day?

Limited to 1-3 cups daily for short periods; long-term safety unconfirmed.

Does mullein tea raise blood pressure?

No evidence; it may help lower it per animal studies.

Is mullein tea safe for lungs?

Potentially soothing, but not a treatment for serious lung diseases.

How long to steep mullein tea?

10-15 minutes hot; 4-12 hours cold.

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Author

Sneha TeteBeauty & Lifestyle Writer

 

Sneha is a relationships and lifestyle writer with a strong foundation in applied linguistics and certified training in relationship coaching. She brings over five years of writing experience to renewcure,  crafting thoughtful, research-driven content that empowers readers to build healthier relationships, boost emotional well-being, and embrace holistic living.

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