Mullein
Verbascum thapsus
Also known as: Common Mullein, Flannel Leaf, Torchwort
Overview
A tall biennial herb used for centuries to soothe coughs, sore throat, and chest congestion. Lab and animal studies show anti-inflammatory activity from compounds such as verbascoside, and its mucilage is believed to coat and calm irritated throat tissue. European regulators list mullein flower as a traditional-use herbal medicine — a category based on long-standing use rather than proven clinical benefit — and no published human trial has shown that it relieves cough or congestion.
Proposed mechanism
Mullein's saponins are traditionally credited with helping loosen and clear mucus from the airways, and its mucilage is thought to coat and soothe irritated throat and bronchial tissue — both long-standing traditional-use rationales rather than clinically demonstrated effects. In laboratory studies, isolated verbascoside (a compound found in mullein) suppressed NF-kB activation and lowered inflammatory cytokines in mice and in lung-cell cultures; it was given as a purified compound by injection, and this anti-inflammatory mechanism has not been tested in people taking mullein.
Mechanisms describe how researchers think a compound may act, often from laboratory work — a proposed mechanism is not proof of a clinical effect in people.
Traditional & studied uses
Related pathways
Pathway tags are a research aid for browsing the glossary — they are not a claim that this ingredient treats any condition.