All herbs
Leaf · Flower
Mullein
Verbascum thapsus — also: Common mullein
Traditional useGenerally low riskInteractions: No major knownPregnancy: Caution
Benefits summary
Traditional respiratory support; minimal human trial evidence.
Traditional & historical use
Folk respiratory remedy for coughs and congestion across Europe and North America.
Modern claims
Soothing (demulcent/expectorant) for dry, irritating coughs.
How it may work
Mucilage and saponins may soothe and loosen mucus; mostly preclinical data.
Benefit–risk at a glance
Potential benefits
- Soothing for dry, irritating cough
Most credible evidence
Traditional use with limited modern study.
Key uncertainties
- Little human evidence
Known risks
- Throat irritation from plant hairs if unstrained
Who should avoid
- People with persistent or severe respiratory symptoms relying on it alone
Risks
Fine plant hairs can irritate — strain tea well; rare skin irritation.
Interactions
None well documented.
Special populations
Limited pregnancy data; use cautiously.
Sourcing & growing
Wild biennial; dry leaves/flowers, strain preparations through fine cloth.
Research layer
Evidence gradeD − traditional & preclinical
Key research findings
- Traditional demulcent/expectorant for dry, irritating cough.
- Preclinical anti-inflammatory and antimicrobial activity reported.
- Minimal human trial data.
Study-quality notes
Soothing effect is plausible but unproven in trials; strain plant hairs.
What would change the verdict
Human cough-symptom trials.
Dr. Bull's read
A classic soothing cough tea — strain those tiny hairs out.