Plant Comparison
Hyssop vs Dense-flowered Mullein
A side-by-side comparison of two medicinal plants — every documented constituent, action, use, safety note and cited source, assembled automatically from the Omnia Sana database.
At a glance
Hyssop and Dense-flowered Mullein: they share 4 indicated uses (bronchitis, cough, respiratory support, …); 1 pharmacological action in common.
Evidence face-off — shared uses
| Condition | Hyssop | Dense-flowered Mullein | Verdict |
|---|---|---|---|
| Bronchitis | 2/10 | 1/10 | Comparable evidence |
| Cough | 2/10 | 1/10 | Comparable evidence |
| Respiratory support | 2/10 | 1/10 | Comparable evidence |
| Skin irritation | 1/10 | 2/10 | Comparable evidence |
Evidence scores (1–10) are computed from the tier of each cited source. “Comparable” means the two scores are within one point. Follow a score to its detailed sources.
Key Constituents
Volatile oil containing the ketones pinocamphone and isopinocamphone, giving the characteristic aroma but also responsible for the neurotoxic/convulsant risk of the essential oil at high internal doses.
Antioxidant constituents contributing to the plant's antimicrobial and anti-inflammatory activity.
The demulcent constituents that soothe mucous membranes.
Pharmacological Actions
Demulcent and mild expectorant for cough and cold with sore throat and dry, irritating cough; Soothes catarrh of the upper respiratory tract / bronchitis (mucilage coats irritated mucosa; saponins loosen mucus)
Traditional & Indicated Uses
inferred from anti-inflammatory action
inferred from anticancer action
inferred from anti-inflammatory action
Soothes catarrh of the upper respiratory tract / bronchitis (mucilage coats irritated mucosa; saponins loosen mucus)
Demulcent and mild expectorant for cough and cold with sore throat and dry, irritating cough
Demulcent and mild expectorant for cough and cold with sore throat and dry, irritating cough; Soothes catarrh of the upper respiratory tract / bronchitis (mucilage coats irritated mucosa; saponins loosen mucus)
Traditional infused-oil ('mullein oil') for earache - two RCTs of a naturopathic herbal ear drop containing Verbascum found it as effective as anaesthetic drops for ear pain in acute otitis media (combination products, not mullein alone)
Traditional infused-oil ('mullein oil') for earache - two RCTs of a naturopathic herbal ear drop containing Verbascum found it as effective as anaesthetic drops for ear pain in acute otitis media (combination products, not mullein alone)
inferred from expectorant action
inferred from demulcent action
Safety, Cautions & Contraindications
Generally safe at therapeutic doses. Hyssop essential oil is neurotoxic in high doses (contains pinocamphone and isopinocamphone) — internal use of the essential oil is contraindicated, especially in epilepsy, pregnancy, and children. The herb (dried or fresh) at normal tea doses does not carry this risk. Not recommended internally in medicinal doses during pregnancy.
Duke (2002) rates hyssop as ++ and notes clinical evidence (score 2) for antiviral activity, particularly against herpes simplex virus, which is notable clinical validation for this herb. It also demonstrates experimental antibacterial, antispasmodic, and expectorant activities. Duke warns that hyssop essential oil is potentially convulsant at higher doses (due to pinocamphone content) and should not be used in epilepsy or by children. Dose: 2–3 g dried herb as tea three times daily; no more than 0.3 ml of essential oil internally. Avoid in pregnancy due to emmenagogue properties (Duke, 2002).
Per the EU herbal monograph, for use in adults and adolescents over 12 years. Cough that persists beyond about a week, or is accompanied by fever, shortness of breath or purulent sputum, needs medical assessment.
Use in pregnancy and breastfeeding is not recommended. Strain liquid preparations to remove the fine flower/leaf hairs, which can irritate the throat.
External Ids
Botanical Description
Aromatic, semi-woody perennial subshrub with slender, upright, square stems typical of the mint family. The leaves are narrow, lance-shaped and highly aromatic. Small, two-lipped, violet-blue (occasionally pink or white) flowers are borne in dense whorled spikes along the upper stem.[1]
Tall, stately biennial herb, very similar to great mullein, forming a low first-year rosette of large, thick, woolly grey-green leaves; the second-year flowering spike bears densely packed, large bright yellow flowers, generally more densely and showily flowered than V. thapsus.[11]
Habitat
Harvesting
The flowering aerial parts (leaf, stem and flower) are cut in summer as the plant comes into flower, when essential oil content is highest, and dried in a warm, shaded, airy place.[1]
The flowers (Verbasci flos) are picked individually as they open through summer, since they open only a few at a time and fade quickly, then dried promptly to preserve colour and mucilage content.[11]
Traditional Uses
Hyssop has an ancient Mediterranean and biblical reputation as a cleansing, aromatic herb, traditionally used as an expectorant and antimicrobial remedy for coughs, bronchitis and respiratory catarrh, and as a digestive bitter and mild antiviral herb, notably for cold sores (herpes simplex).[1]
Together with great mullein and V. phlomoides, dense-flowered mullein flower is officially recognised in the EU herbal monograph and ESCOP monograph as a traditional demulcent and mild expectorant for cough and cold with sore throat, used to soothe irritated mucous membranes of the upper respiratory tract.[11, 12]
Preparations
Dried flowering herb infused in hot water as a traditional expectorant and digestive tea.
Dried flower infused in hot water, carefully strained to remove fine hairs, as the standard traditional preparation for cough and sore throat.
Flowers infused in oil, traditionally used (often combined with other herbs) as ear drops for earache.
Dosage
Health Canada's NNHPD monograph gives 3-16 g of dried herb top per day for adults 18 years and older, not to exceed 4 g in a single dose, with infusion among the accepted methods of preparation. Educational reference only, not a prescription. The essential oil is not for unsupervised internal use.
The EU herbal monograph suggests around 1.5-2 g of dried flower per cup, up to three times daily, in adults and adolescents over 12 years. Educational reference only, not a prescription.
References
Lookalikes Review
Dangerous Lookalikes
Not documented
References & Sources
- Atazhanova, G., Ishmuratova, M., Levaya, Y., Smagulov, M. and Lakomkina, Y (2024) 'The Genus Hyssopus: Traditional Use, Phytochemicals and Pharmacological Properties', Plants (Basel), 13(12), pp. 1683. doi:10.3390/plants13121683 Traditional / reference
https://doi.org/10.3390/plants13121683 - Sharifi-Rad, J., Quispe, C., Kumar, M., Akram, M. et al (2022) 'Hyssopus Essential Oil: An Update of Its Phytochemistry, Biological Activities, and Safety Profile', Oxidative Medicine and Cellular Longevity, 2022, pp. 8442734. doi:10.1155/2022/8442734 Traditional / reference
https://doi.org/10.1155/2022/8442734 - Gharakhani-Beni, A., Ghasemi Pirbalouti, A., Javanmard, H., Soleymani, A. and Golparvar, A (2022) 'Chemical compositions, yield and antioxidant activity of the essential oil of hyssop (Hyssopus officinalis L.) under intercropping with fenugreek', Natural Product Research, 37(4), pp. 675-680. doi:10.1080/14786419.2022.2078971 Preclinical
https://doi.org/10.1080/14786419.2022.2078971 - Fatahinezhad, N., Lorigooini, Z., Arabi, M., Rabiei, Z., Sheykhshabani, S.K. and Rafieian-Kopaei, M (2022) 'Effects of Hyssopus Officinalis Hydroalcoholic Extract on Pentylenetetrazol-Induced Convulsive Seizures in Rat', Neurochemical Research, 47(12), pp. 3792-3804. doi:10.1007/s11064-022-03759-x Preclinical
https://doi.org/10.1007/s11064-022-03759-x - Tahir, M., Rahman, M.A. and Khushtar, M (2019) 'Gastroprotective effect of Hyssopus officinalis L. leaves via reduction of oxidative stress in indomethacin-induced gastric ulcer in experimental rats', Drug and Chemical Toxicology, 45(1), pp. 291-300. doi:10.1080/01480545.2019.1685537 Preclinical
https://doi.org/10.1080/01480545.2019.1685537 - Khaksar, S., Kiarostami, K. and Alinaghi, S (2022) 'The Effects of Methanol Extracts of Hyssopus officinalis on Model of Induced Glioblastoma Multiforme (GBM) in Rats', Journal of Molecular Neuroscience, 72(9), pp. 2045-2066. doi:10.1007/s12031-022-02058-y Preclinical
https://doi.org/10.1007/s12031-022-02058-y - Ghasempour, M., Hosseini, M., Soltani-Zangbar, M.S., Motavalli, R., Aghebati-Maleki, L., Dolati, S., Mehdizadeh, A., Yousefi, M. and Ahmadian Heris, J (2022) 'The impact of Hyssop (Hyssopus officinalis) extract on activation of endosomal toll like receptors and their downstream signaling pathways', BMC Research Notes, 15(1), pp. 366. doi:10.1186/s13104-022-06253-3 Preclinical
https://doi.org/10.1186/s13104-022-06253-3 - Ma, X., Ma, X., Ma, Z., Wang, J., Sun, Z., Yu, W., Li, F. and Ding, J (2014) 'Effect of Hyssopus officinalis L. on inhibiting airway inflammation and immune regulation in a chronic asthmatic mouse model', Experimental and Therapeutic Medicine, 8(5), pp. 1371-1374. doi:10.3892/etm.2014.1978 Preclinical
https://doi.org/10.3892/etm.2014.1978 - Gholami, M., Jafari, F., Baradaran, Z., Amri, J., Azhdari-Zarmehri, H. and Sadegh, M (2020) 'Effects of aqueous extract of Hyssopus officinalis on seizures induced by pentylenetetrazole and hippocampus mRNA level of iNOS in rats', Avicenna Journal of Phytomedicine, 10(3), pp. 213-221. Preclinical
https://scholar.google.com/scholar?q=Effects%20of%20aqueous%20extract%20of%20Hyssopus%20officinalis%20on%20seizures%20induced%20by%20pentylenetetrazole%20and%20hippocampus%20mRNA%20level%20of%20iNOS%20in%20rats - Guerrini, A., Sacchetti, G., Echeverria Guevara, M.P., Paganetto, G., Grandini, A., Maresca, I., Menghini, L., Di Martino, L., Marengo, A. and Tacchini, M (2021) 'Wild Italian Hyssopus officinalis subsp. aristatus (Godr.) Nyman: From Morphological and Phytochemical Evidences to Biological Activities', Plants, 10(4), pp. 631. doi:10.3390/plants10040631 Preclinical
https://doi.org/10.3390/plants10040631 - Rashidi, S., Eikani, M.H. and Ardjmand, M (2018) 'Extraction of Hyssopus officinalis L. essential oil using instant controlled pressure drop process', Journal of Chromatography A, 1579, pp. 9-19. doi:10.1016/j.chroma.2018.10.020 Preclinical
https://doi.org/10.1016/j.chroma.2018.10.020 - Polaki, S., Stamatelopoulou, V., Kotsou, K., Chatzimitakos, T., Athanasiadis, V., Bozinou, E. and Lalas, S.I (2024) 'Exploring Conventional and Green Extraction Methods for Enhancing the Polyphenol Yield and Antioxidant Activity of Hyssopus officinalis Extracts', Plants, 13(15), pp. 2105. doi:10.3390/plants13152105 Preclinical
https://doi.org/10.3390/plants13152105 - Health Canada, Natural and Non-prescription Health Products Directorate (2026) 'Natural Health Product Monograph: Hyssop - Hyssopus officinalis'. Available at: https://webprod.hc-sc.gc.ca/nhpid-bdipsn/dbImages/mono_hyssop_english.pdf Traditional / reference
https://webprod.hc-sc.gc.ca/nhpid-bdipsn/dbImages/mono_hyssop_english.pdf - Royal Botanic Gardens, Kew (n.d.). Available at: https://powo.science.kew.org Traditional / reference
https://powo.science.kew.org - Duke, J.A (2002) 'Handbook of Medicinal Herbs, Second Edition'. Traditional / reference
https://scholar.google.com/scholar?q=Handbook%20of%20Medicinal%20Herbs%2C%20Second%20Edition
- Grigore, A., Colceru-Mihul, S., Litescu, S., Panteli, M. and Rasit, I (2013) 'Correlation between polyphenol content and anti-inflammatory activity of Verbascum phlomoides (mullein)', Pharmaceutical Biology, 51(7), pp. 925-929. doi:10.3109/13880209.2013.767361 Preclinical
https://doi.org/10.3109/13880209.2013.767361 - Klimek, B., Olszewska, M.A. and Tokar, M (2010) 'Simultaneous determination of flavonoids and phenylethanoids in the flowers of Verbascum densiflorum and V. phlomoides by high-performance liquid chromatography', Phytochemical Analysis, 21(2), pp. 150-156. doi:10.1002/pca.1171 Preclinical
https://doi.org/10.1002/pca.1171 - Suntar, I., Tatli, I.I., Kupeli Akkol, E., Keles, H. and others (2010) 'An ethnopharmacological study on Verbascum species: from conventional wound healing use to scientific verification', Journal of Ethnopharmacology, 132(2), pp. 408-413. doi:10.1016/j.jep.2010.08.004 Preclinical
https://doi.org/10.1016/j.jep.2010.08.004 - Georgiev, M.I., Ali, K., Alipieva, K., Verpoorte, R. and Choi, Y.H (2011) 'Metabolic differentiations and classification of Verbascum species by NMR-based metabolomics', Phytochemistry, 72(16), pp. 2045-2051. doi:10.1016/j.phytochem.2011.07.005 Preclinical
https://doi.org/10.1016/j.phytochem.2011.07.005 - Torok, T. and Varga, E (2015) 'Pharmacognosy study of Verbascum species', Acta Pharmaceutica Hungarica, 85(3), pp. 89-95. Preclinical
https://scholar.google.com/scholar?q=Pharmacognosy%20study%20of%20Verbascum%20species - Castro, A.I., Carmona, J.B., Gonzales, F.G. and Nestar, O.B (2006) 'Occupational airborne dermatitis from gordolobo (Verbascum densiflorum)', Contact Dermatitis, 55(5), pp. 301. doi:10.1111/j.1600-0536.2006.00923.x Preclinical
https://doi.org/10.1111/j.1600-0536.2006.00923.x - Rodriguez-Fragoso, L., Reyes-Esparza, J., Burchiel, S.W., Herrera-Ruiz, D. and Torres, E (2007) 'Risks and benefits of commonly used herbal medicines in Mexico', 227(1), pp. 125--135. doi:10.1016/j.taap.2007.10.005 Meta-analysis / review
https://doi.org/10.1016/j.taap.2007.10.005 - Symoniuk, E., Marczak, Z., Brzezinska, R. and Janowicz, M (2023) 'Effect of the Freeze-Dried Mullein Flower Extract (Verbascum sp.) Addition on Oxidative Stability and Antioxidant Activity of Selected Cold-Pressed Oils', Foods, 12(12), pp. 2391. doi:10.3390/foods12122391 Preclinical
https://doi.org/10.3390/foods12122391 - Turker, A.U. and Gurel, E (2005) 'Common mullein (Verbascum thapsus L.): recent advances in research', Phytotherapy Research, 19(9), pp. 733-739. doi:10.1002/ptr.1653 Meta-analysis / review
https://doi.org/10.1002/ptr.1653 - Blanco-Salas, J., Hortigon-Vinagre, M.P., Morales-Jadan, D. and Ruiz-Tellez, T (2021) 'Searching for Scientific Explanations for the Uses of Spanish Folk Medicine: A Review on the Case of Mullein (Verbascum, Scrophulariaceae)', Biology, 10(7), pp. 618. doi:10.3390/biology10070618 Meta-analysis / review
https://doi.org/10.3390/biology10070618 - European Medicines Agency (HMPC) (n.d.) 'European Union herbal monograph on Verbascum thapsus L., V. densiflorum Bertol. and V. phlomoides L., flos (Verbasci flos)'. Available at: https://www.ema.europa.eu/en/medicines/herbal/verbasci-flos Traditional / reference
https://www.ema.europa.eu/en/medicines/herbal/verbasci-flos - ESCOP (European Scientific Cooperative on Phytotherapy) (n.d.) 'Verbasci flos (Mullein Flower) monograph', pp. com. Available at: https://www.escop.com/downloads/mullein-flower/ Traditional / reference
https://www.escop.com/downloads/mullein-flower/ - Sarrell, E.M., Mandelberg, A. and Cohen, H.A (2001) 'Efficacy of naturopathic extracts in the management of ear pain associated with acute otitis media', Archives of Pediatrics & Adolescent Medicine, 155(7), pp. 796--799. doi:10.1001/archpedi.155.7.796 Clinical study
https://doi.org/10.1001/archpedi.155.7.796 - Sarrell, E.M., Cohen, H.A. and Kahan, E (2003) 'Naturopathic treatment for ear pain in children', Pediatrics, pp. e574--e579. doi:10.1542/peds.111.5.e574 Randomized trial
https://doi.org/10.1542/peds.111.5.e574 - Lin, C.C. and Yang, C.C. and Phua, D.H. and Deng, J.F. and Lu, L.H (2010) 'An outbreak of foxglove leaf poisoning', Journal of the Chinese Medical Association, 73(2), pp. 97-100. doi:10.1016/S1726-4901(10)70009-5 Clinical study
https://doi.org/10.1016/S1726-4901(10)70009-5 - Janssen, R.M. and Berg, M. and Ovakim, D.H (2016) 'Two cases of cardiac glycoside poisoning from accidental foxglove ingestion', CMAJ, 188(10), pp. 747-750. doi:10.1503/cmaj.150676 Clinical study
https://doi.org/10.1503/cmaj.150676 - NC State Extension (2024) 'Verbascum thapsus (Common Mullein)'. Available at: https://plants.ces.ncsu.edu/plants/verbascum-thapsus/ Traditional / reference
https://plants.ces.ncsu.edu/plants/verbascum-thapsus/
Generated automatically from the Omnia Sana plant database and its cited sources. For educational purposes only — not medical advice. Always consult a qualified practitioner before using medicinal plants.