Mullein – Respiratory & Lung Health Guide

Mullein (Verbascum thapsus L.), also known by charming folk names like Donkey's Ears, Bunny's Ears, and Velvet Plant, is a towering biennial herb native to Europe, northern Africa, and Asia. In its first year it forms a low rosette of soft, flannel-textured leaves; in its second year it sends up a dramatic flowering stalk that can reach seven feet tall, topped with dense clusters of sulphur-yellow flowers that bloom from June through September.

The first documented medicinal use of Mullein dates back nearly 2,000 years to Dioscorides, the Greek physician and botanist who recommended it for pulmonary conditions. Since then, Mullein has been a cornerstone of respiratory herbalism across cultures — from medieval European cough remedies and Native American healing practices to traditional Turkish medicine for bronchitis and dry coughs. By the 19th century, British Colonial doctors were introducing Mullein leaf syrups in hospitals for bronchial support, and in the 20th century Germany's Commission E monographs acknowledged its cough-relieving properties.

Today, Mullein remains one of the most widely recognized herbs for nourishing the respiratory system. Its high mucilage content absorbs water in the windpipe, becoming slippery and lubricating the airways. Combined with mild saponins that traditionally support the loosening of mucus, Mullein offers a time-tested approach to respiratory comfort. Each Nature's Sunshine Mullein capsule delivers 290 mg of Mullein leaf, and the product is vegan, kosher, halal, and non-GMO.

Mullein's traditional reputation rests on a rich blend of bioactive compounds, and modern phytochemical analysis has begun to illuminate how they work together.

Mucilage: The Soothing Shield

The mucilaginous polysaccharides in Mullein leaf form a soothing, protective layer on irritated mucous membranes. This demulcent coating is the primary physical mechanism behind Mullein's traditional use for sore throats, dry coughs, and general airway irritation. The mucilage absorbs water in the respiratory tract, becoming slippery and helping to lubricate irritated tissue.

Saponins: Nature's Expectorant

Both the leaves and flowers of Mullein contain saponins, which are proposed to reduce surface tension within the airways, facilitating the loosening and expulsion of mucus. This expectorant action may help make coughs more productive, supporting the body's natural ability to clear the airways.

Flavonoids and Verbascoside: Anti-Inflammatory Allies

Mullein contains flavonoids including quercetin and rutin — antioxidants that may help protect lung tissue from oxidative stress. A 2021 PMC review confirmed that anti-inflammatory phytochemicals, particularly quercetin, correlate with Mullein's traditional respiratory uses. Verbascoside (also called acteoside), a polyphenolic compound first isolated from the Verbascum genus, has demonstrated antioxidant and anti-inflammatory properties in laboratory studies.

Iridoid Glycosides

Compounds such as aucubin have been reported to have anti-inflammatory and antimicrobial effects. The European Medicines Agency (EMA) assessment report states that both aucubin and verbascoside have anti-inflammatory effects.

A 2005 study published in Phytotherapy Research found that Mullein extract demonstrated expectorant and bronchodilatory effects in animal models, lending scientific credence to centuries of traditional use. While large-scale human clinical trials are still needed, the available research provides meaningful context that supports the historical observations.

Mullein is traditionally suited for anyone looking to nourish and support their respiratory system. You may find it especially relevant if you:

• Experience occasional respiratory discomfort — Mullein's mucilage and saponins have been traditionally used to soothe irritated airways and support more productive coughs.
• Want to support lung and bronchial health — whether during seasonal changes or periods of environmental challenge, Mullein has historically been a go-to herb for maintaining respiratory comfort.
• Seek support for healthy ears — Mullein has a long folk medicine tradition of promoting ear comfort, and limited clinical research on multi-herb formulas containing Mullein has shown promise for reducing ear discomfort.
• Prefer a gentle, plant-based approach — this single-herb formula is vegan, kosher, halal, and non-GMO, making it accessible for a wide range of dietary preferences.

If you're not sure whether Mullein is right for your situation, our naturopath is available for a free consultation — just reach out and we'll help you find the best fit for your needs.

Important safety notes: Expectant women and those breastfeeding should avoid Mullein due to a lack of safety data. Oral use is not recommended for children. Individuals with known allergies to the Scrophulariaceae (figwort) family, or those taking anticoagulants or immunosuppressants, should consult a healthcare professional before use. People with severe liver or kidney conditions should exercise caution, especially with prolonged use.

Take 2 capsules with a meal twice daily.

Each bottle contains 100 capsules. Mullein is traditionally used for short-to-medium-term support — for example, during a period of respiratory discomfort or seasonal challenges. As with any supplement, consistency is key. If you have questions about how Mullein fits into your personal wellness routine, our naturopath offers free consultations and is happy to help.

Few herbs can claim a documented history as long and geographically diverse as Mullein. Dioscorides first wrote about its use for pulmonary conditions around 40–90 AD, and the herb appears in the healing traditions of ancient Rome and Greece, where the tall stalks were dipped in tallow and used as torches — earning it the nickname "torch plant."

In medieval Europe, Mullein was planted around homes as protection from evil spirits and prepared as a remedy for coughs and colds. The Puritans brought Mullein seeds to America for their medicinal herb gardens, and Native American tribes recognized its value for respiratory support, also using crushed and boiled leaves as poultices for a range of external concerns.

In traditional Turkish medicine, Mullein leaves and flowers have been used to address respiratory conditions such as bronchitis, dry coughs, and asthma. European herbalists brewed infusions and teas from the leaves and used steam inhalations to clear nasal congestion and soothe irritated lungs.

The herb's folk names tell the story of its versatility: "Candlewick Plant" (dried leaf down was used for lamp wicks), "Aaron's Rod" and "Jacob's Staff" (for the towering flower stalk), and "Flannel Leaf" (for the impossibly soft texture of the leaves). Today, Mullein remains one of the most enduring and widely recognized respiratory herbs in the Western herbal tradition.