Mullein
Also known as: Verbascum thapsus, Verbascum phlomoides, common mullein, great mullein, verbascum
Effective Dosage
No established dose
What the Science Says
Mullein is a flowering plant used for centuries in folk medicine, particularly in Turkish and European traditions. Its flowers contain polyphenols like rosmarinic acid, caffeic acid, and quercetin, which show antioxidant and mild anti-inflammatory activity in lab studies. One small clinical trial found that a topical mullein cream improved episiotomy wound healing scores significantly by day 10 compared to placebo, though early results were not statistically significant.
What It Doesn't Do
No clinical evidence it treats respiratory conditions like bronchitis or asthma, despite being heavily marketed for lung health. No proven benefit for ear infections in humans from the provided studies. Lab findings on Alzheimer's-related compounds don't mean it treats or prevents dementia. No evidence it works as an oral supplement for any condition based on the available clinical data.
Evidence-Based Benefits
Traditional use as respiratory demulcent (soothing). May help with cough.
Weak EvidenceEffective at: No established effective dose
Source: NIH ODS
Absorption & Bioavailability
Unknown — no pharmacokinetic or absorption data provided in the available studies. Topical application was the only clinically tested route.
Red Flags to Watch For
- Mullein plants grown in polluted soils can accumulate heavy metals (zinc, lead, chromium, cadmium) at levels exceeding safety limits — source of raw material matters greatly
- Contact dermatitis has been reported from Verbascum thapsus exposure — topical users should patch test first
- Flavonoid content varies dramatically between batches and growing seasons, meaning product potency is highly inconsistent
- Most health claims (lung support, ear drops, immune boost) are not supported by any clinical trials in the provided evidence base
- 650+ supplement products on the market despite only 2 indexed clinical papers — widespread use far outpaces the science
Research Sources
- PubMed
- NIH DSLD
This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-04-06