Kuan Dong Hua

Coltsfoot Flower – Flowers of Tussilago farfara (lung herb, traditional use)Coltsfoot Flower refers to the dried flower buds and flowers of Tussilago farfara, a plant long used in European and Asian herbal traditions as a “lung herb” for dry, irritating, or spasmodic coughs. The flowers contain mucilage (soothing polysaccharides), flavonoids, and other plant constituents that are traditionally associated with calming irritated mucous membranes of the throat and bronchi. At the same time, coltsfoot is known to contain pyrrolizidine alkaloids, a class of compounds that can be harmful to the liver when consumed excessively or over long periods, which raises important safety considerations for internal use.Origin, properties, and compositionThe flower buds are typically harvested in early spring before the leaves appear and then gently dried to preserve their delicate constituents. Traditional preparations include teas, syrups, and liquid extracts, often in combination with other respiratory herbs. When mixed with water, the mucilage in the flowers forms a soft, protective gel‑like layer over mucous membranes, which herbalists regard as soothing for tickly coughs and throat irritation. The flavonoids and related compounds are often discussed in the herbal literature in relation to antitussive and mildly anti‑inflammatory properties, although exact composition and levels depend on growing conditions and processing.Role in supplements/herbal formulasIn modern products, Coltsfoot Flower is more typically found in traditional herbal formulas (such as cough teas and syrups) than in general, long‑term daily dietary supplements. Because of the presence of pyrrolizidine alkaloids and associated liver safety concerns, various regulatory bodies have introduced limits, warnings, or restrictions on the use of coltsfoot in ingestible products. From a formulation perspective, it is therefore best classified as a traditional medicinal herb used for short‑term, targeted applications rather than as a routine wellness supplement ingredient.Use, labelling, and precautionsIf Coltsfoot Flower is included in a product, the botanical name should be clearly indicated, e.g. “Coltsfoot Flower (Tussilago farfara flos)”. In light of potential pyrrolizidine alkaloid exposure, use is generally not recommended for children, pregnant or breastfeeding women, or people with liver disease, and prolonged or high‑dose use should be avoided. National and regional regulations may specify maximum levels, required warnings, or even prohibit internal use, all of which must be carefully respected in product design and labelling. This herb is not an ordinary food ingredient and must not be positioned as a harmless home remedy or a substitute for medical treatment.Herbal/TCM disclaimerColtsfoot Flower is a traditional herbal ingredient with pharmacologically active components and a non‑trivial safety profile. Descriptions of historical or traditional uses do not constitute medical advice and must not replace professional diagnosis or treatment. Products containing coltsfoot are not medicines in supplement form and do not replace a varied, balanced diet; any use should comply with applicable regulations and, where relevant, be guided by a qualified healthcare professional.