Omnia SanaPlant Comparison
Arnica vs Lavender
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
Arnica and Lavender: they share 6 indicated uses (arthritis / joint pain, cancer (anticancer research), infection (general), …); 4 pharmacological actions in common.
Evidence face-off — shared uses
| Condition | Arnica | Lavender | Verdict |
|---|---|---|---|
| Arthritis / joint pain | 7/10 | 5/10 | Stronger for Arnica |
| Cancer (anticancer research) | 2/10 | 2/10 | Comparable evidence |
| Infection (general) | 1/10 | 5/10 | Stronger for Lavender |
| Inflammation (general) | 7/10 | 5/10 | Stronger for Arnica |
| Skin irritation | 7/10 | 5/10 | Stronger for Arnica |
| Wounds | 1/10 | 5/10 | Stronger for Lavender |
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
The main anti-inflammatory principles; also responsible for the plant's toxicity and contact-allergy potential.
Aromatic and supporting constituents of the flower.
Present in small amounts; relevant to the caution against internal use.
Flower essential oil dominated by linalool and linalyl acetate, the principal compounds behind the calming, anxiolytic and antimicrobial activity.
Antioxidant constituents of the flower.
Pharmacological Actions
Topical anti-inflammatory for bruising, swelling and sprains
Helenalin, the sesquiterpene lactone of Arnica montana, shows anticancer activity against multiple tumour types in vitro and in vivo, largely by covalently inhibiting NF-kappaB p65 and inducing apoptosis (preclinical).
Traditional & Indicated Uses
inferred from anti-inflammatory action
Antiecchymotic / vulnerary (helps disperse bruises); Topical anti-inflammatory for bruising, swelling and sprains
Arnica montana and its constituent helenalin exert anticancer activity against several tumour types in vitro and in vivo, inhibiting NF-kappaB (p65) signalling, inducing apoptosis and synergizing with other anticancer agents (preclinical).
inferred from antimicrobial action
inferred from anti-inflammatory action
Topical analgesic for muscle soreness and pain
Topical analgesic for muscle soreness and pain
inferred from anti-inflammatory action
Topical anti-inflammatory for bruising, swelling and sprains
inferred from anti-inflammatory action
inferred from anticancer action
inferred from antimicrobial action
inferred from anti-inflammatory action
inferred from sedative action
inferred from antispasmodic action
inferred from antispasmodic action
inferred from anti-inflammatory action
Safety, Cautions & Contraindications
EXTERNAL USE ONLY on unbroken skin. Arnica is toxic if swallowed and can cause stomach pain, vomiting, diarrhoea, breathing difficulty, irregular heartbeat and, in serious cases, cardiac arrest; the only safe oral form is the highly diluted homeopathic preparation.
Do not apply to broken or damaged skin, open wounds, eyes or mucous membranes.
As a member of the daisy family (Asteraceae) it can cause allergic contact dermatitis; prolonged topical use can also irritate the skin.
Generally very safe. Essential oil should not be ingested in large amounts. Rarely, contact dermatitis may occur. May potentiate the effect of sedative medications. Avoid therapeutic doses during pregnancy.
Duke (2002) rates lavender as ++ and provides clinical evidence (score 2) for carminative activity, consistent with Commission E approval for nervous stomach disorders and functional abdominal complaints. Additional experimental activities include anxiolytic, antispasmodic, and antiseptic effects. The essential oil demonstrates COX-2 inhibitory and Alzheimer's-relevant properties at the experimental level. Dose: 1–2 teaspoons (4–8 g) dried flowers as tea; 1–3 drops essential oil in a carrier for topical or aromatherapy use. Duke notes that oral lavender oil (Silexan) has clinical evidence for generalized anxiety disorder (Duke, 2002).
External Ids
Botanical Description
Aromatic mountain perennial herb with a basal rosette of oval, hairy leaves and one or two pairs of smaller opposite leaves on an erect, softly hairy flowering stem. Each stem bears one or a few large, bright golden-yellow, daisy-like flower heads with narrow, slightly twisted ray florets.[4]
Aromatic, evergreen, woody-based perennial subshrub with narrow, grey-green, felted leaves. Slender flowering spikes carrying whorls of small, tubular, two-lipped violet-blue flowers rise well above the foliage on long, unbranched stalks.[4]
Habitat
Grows in acidic, nutrient-poor mountain meadows, pastures and open woodland, typically at moderate to high elevations across central and northern Europe; increasingly scarce in the wild due to habitat loss and overharvesting.[4]
Native to the mountains of the western Mediterranean (southern France, Spain, Italy); widely cultivated in sunny, well-drained, often calcareous sites across temperate and Mediterranean climates worldwide.[4]
Harvesting
The flower heads are picked by hand as they open, in mid- to late summer, and dried quickly in a warm, shaded, airy place; wild populations are protected in many regions, so cultivated or sustainably wildcrafted material is preferred.[4]
The flower spikes are cut as the flowers open, in mid- to late summer, when essential oil content is highest, and dried in a warm, shaded, airy place or distilled fresh for essential oil.[4]
Traditional Uses
Arnica flower has a long central European folk reputation, reflected in the name 'leopard's bane' and 'mountain tobacco', as a topical remedy for bruising, sprains, muscle soreness and swelling after minor injury, applied only to unbroken skin. Internal use of the whole herb has always been considered dangerous and is confined to highly diluted homeopathic preparations.[4]
Lavender flower has a long Mediterranean and European tradition as a calming, sedative herb for nervous tension, anxiety and insomnia, and as a mild digestive carminative and antiseptic for minor wounds and skin irritation; the essential oil in particular has an extensive modern clinical evidence base for anxiety and sleep support.[4]
Preparations
Standardised flower extract formulated into a cream, gel or ointment for external application to bruises, sprains and muscle soreness on unbroken skin.
Alcoholic tincture of the dried flower heads, diluted before topical application as a compress; never taken internally in this form.
Dosage
The EU herbal monograph gives cutaneous use only, in adolescents, adults and elderly - a semi-solid preparation containing 20-25% tincture applied as a thin layer 2-3 times daily, a 50% liquid-extract preparation 2-4 times daily, or 2.5 mL of a liquid preparation as an impregnated dressing 3-4 times daily. Apply to unbroken skin only. If symptoms persist after 3 to 4 days a healthcare practitioner should be consulted. Not recommended under 12 years. Never taken by mouth except as a highly diluted homeopathic preparation. Educational reference only, not a prescription.
The EU herbal monograph gives 1-2 g of the flower in 150 mL of boiling water as an infusion, three times daily, in adolescents, adults and elderly; a tincture at 2-4 mL three times daily is also listed. The monograph notes that lavender may impair the ability to drive or use machines. Not recommended under 12 years. Educational reference only, not a prescription.
References
Lookalikes Review
Drug Class Interactions
Not documented
Pairings
Not documented
Lavender and valerian are both calming herbs used to aid relaxation and sleep; taken together their sedative effects can add up, so while they may help relaxation they can also increase drowsiness — avoid combining with sedative medicines or before driving.[22, 23]
Lavender and lemon balm are both calming herbs used to ease anxiety and aid sleep; taken together their sedative effects can add up, so while they may help relaxation they can also increase drowsiness — avoid combining with sedative medicines or before driving.[22, 24]
Lavender and chamomile are both calming herbs used to ease anxiety and aid sleep; taken together their sedative effects can add up, so while they may help relaxation they can also increase drowsiness — avoid combining with sedative medicines or before driving.[22, 25]
References & Sources
- Toma, C.C., Marrelli, M., Puticiu, M., Conforti, F. and Statti, G (2024) 'Effects of Arnica montana Phytotherapeutic and Homeopathic Formulations on Traumatic Injuries and Inflammatory Conditions: A Systematic Review', Plants (Basel), 13(21), pp. 3112. doi:10.3390/plants13213112 Meta-analysis / review
https://doi.org/10.3390/plants13213112 - Schmidt, T.J (2023) 'Arnica montana L.: Doesn't Origin Matter?', Plants (Basel), 12(20), pp. 3532. doi:10.3390/plants12203532 Traditional / reference
https://doi.org/10.3390/plants12203532 - Dragos, D., Gilca, M., Gaman, L., Vlad, A., Iosif, L. et al (2017) 'Phytomedicine in Joint Disorders', Nutrients, 9(1), pp. 70. doi:10.3390/nu9010070 Traditional / reference
https://doi.org/10.3390/nu9010070 - Kriplani, P., Guarve, K. and Baghael, U.S (2017) 'Arnica montana L. - a plant of healing: review', Journal of Pharmacy and Pharmacology, pp. 12724. doi:10.1111/jphp.12724 Traditional / reference
https://doi.org/10.1111/jphp.12724 - Iannitti, T., Morales-Medina, J.C., Bellavite, P., Rottigni, V. and Palmieri, B (2016) 'Effectiveness and safety of Arnica montana in post-surgical setting, pain and inflammation', American Journal of Therapeutics, 23(1), pp. e184-e197. doi:10.1097/MJT.0000000000000036 Meta-analysis / review
https://doi.org/10.1097/MJT.0000000000000036 - Verre, J., Boisson, M., Paumier, A., Tribolo, S. and Boujedaini, N (2023) 'Anti-inflammatory effects of Arnica montana (mother tincture and homeopathic dilutions) in various cell models', Journal of Ethnopharmacology, 318(Pt B), pp. 117064. doi:10.1016/j.jep.2023.117064 Preclinical
https://doi.org/10.1016/j.jep.2023.117064 - Rohrl, J., Pique-Borras, M., Jaklin, M., Werner, M., Werz, O., Josef, H., Holz, H., Ammendola, A. and Kunstle, G (2023) 'Anti-inflammatory activities of Arnica montana planta tota versus flower extracts: analytical, in vitro and in vivo mouse paw oedema model studies', Plants, 12(6), pp. 1348. doi:10.3390/plants12061348 Preclinical
https://doi.org/10.3390/plants12061348 - da Silva Prade, J., Balsamo, E.C., Machado, F.R., Poetini, M.R., Bortolotto, V.C., Araujo, S.M., Londero, L., Boeira, S.P., Sehn, C.P., de Gomes, M.G., Prigol, M. and Cattelan Souza, L (2020) 'Anti-inflammatory effect of Arnica montana in a UVB radiation-induced skin-burn model in mice', Cutaneous and Ocular Toxicology, 39(2), pp. 126-133. doi:10.1080/15569527.2020.1743998 Preclinical
https://doi.org/10.1080/15569527.2020.1743998 - Zacarias, C.A., de Mendonca Florenziano, R.F., de Andrade, T.A.M., de Aro, A.A., do Amaral, M.E.C., Dos Santos, G.M.T. and Esquisatto, M.A.M (2023) 'Arnica montana L. associated with microcurrent accelerates the dermis reorganisation of skin lesions', International Journal of Experimental Pathology, 104(2), pp. 81-95. doi:10.1111/iep.12469 Preclinical
https://doi.org/10.1111/iep.12469 - Chaiet, S.R. and Marcus, B.C (2016) 'Perioperative Arnica montana for reduction of ecchymosis in rhinoplasty surgery', Annals of Plastic Surgery, 76(5), pp. 477-482. doi:10.1097/SAP.0000000000000312 Randomized trial
https://doi.org/10.1097/SAP.0000000000000312 - Zitek, T., Postruznik, V., Knez, Z., Golle, A., Daris, B. and Knez Marevci, M (2022) 'Arnica montana L. supercritical extraction optimization for antibiotic and anticancer activity', Frontiers in Bioengineering and Biotechnology, 10, pp. 897185. doi:10.3389/fbioe.2022.897185 Preclinical
https://doi.org/10.3389/fbioe.2022.897185 - Sutovska, M., Capek, P., Kocmalova, M., Pawlaczyk, I., Zaczynska, E., Czarny, A., Uhliarikova, I., Gancarz, R. and Franova, S (2014) 'Characterization and pharmacodynamic properties of Arnica montana complex', International Journal of Biological Macromolecules, 69, pp. 214-221. doi:10.1016/j.ijbiomac.2014.05.051 Preclinical
https://doi.org/10.1016/j.ijbiomac.2014.05.051 - Merfort, I. and Wendisch, D (1987) 'Flavonoid glycosides from Arnica montana and Arnica chamissonis', Planta Medica, 53(5), pp. 434-437. doi:10.1055/s-2006-962766 Preclinical
https://doi.org/10.1055/s-2006-962766 - European Medicines Agency (HMPC) (2012) 'Community herbal monograph on Arnica montana L., flos'. Available at: https://www.ema.europa.eu/en/documents/herbal-monograph/final-community-herbal-monograph-arnica-montana-l-flos_en.pdf Traditional / reference
https://www.ema.europa.eu/en/documents/herbal-monograph/final-community-herbal-monograph-arnica-montana-l-flos_en.pdf - Gaertner, K., Baumgartner, S. and Walach, H (2021) 'Is Homeopathic Arnica Effective for Postoperative Recovery? A Meta-analysis of Placebo-Controlled and Active Comparator Trials', Frontiers in Surgery. doi:10.3389/fsurg.2021.680930 Meta-analysis / review
https://doi.org/10.3389/fsurg.2021.680930 - Kriplani, P. and Guarve, K (2020) 'Recent Patents on Anti-Cancer Potential of Helenalin', Recent Patents on Anti-Cancer Drug Discovery, 15(2), pp. 132-142. doi:10.2174/1574892815666200702142601 Preclinical
https://doi.org/10.2174/1574892815666200702142601 - Drogosz, J. and Janecka, A (2019) 'Helenalin - A Sesquiterpene Lactone with Multidirectional Activity', Current Drug Targets, 20(4), pp. 444-452. doi:10.2174/1389450119666181012125230 Preclinical
https://doi.org/10.2174/1389450119666181012125230 - National Capital Poison Center (Poison Control) (n.d.) 'Caution when using Arnica products'. Available at: https://www.poison.org/articles/caution-when-using-arnica-products-193 Traditional / reference
https://www.poison.org/articles/caution-when-using-arnica-products-193
- Tan, L., Liao, F.F., Long, L.Z., Ma, X.C. et al (2023) 'Essential oils for treating anxiety: a systematic review of randomized controlled trials and network meta-analysis', Frontiers in Public Health, 11, pp. 1144404. doi:10.3389/fpubh.2023.1144404 Meta-analysis / review
https://doi.org/10.3389/fpubh.2023.1144404 - Dos Reis Lucena, L., Dos Santos-Junior, J.G., Tufik, S. and Hachul, H (2021) 'Lavender essential oil on postmenopausal women with insomnia: Double-blind randomized trial', Complementary Therapies in Medicine, 59, pp. 102726. doi:10.1016/j.ctim.2021.102726 Randomized trial
https://doi.org/10.1016/j.ctim.2021.102726 - Moss, M., Cook, J., Wesnes, K. and Duckett, P (2003) 'Aromas of rosemary and lavender essential oils differentially affect cognition and mood in healthy adults', International Journal of Neuroscience, 113(1), pp. 15-38. doi:10.1080/00207450390161903 Randomized trial
https://doi.org/10.1080/00207450390161903 - Denner, S.S (2009) 'Lavandula angustifolia Miller: English lavender', Holistic Nursing Practice, 23(1), pp. 57-64. doi:10.1097/01.HNP.0000343210.56710.fc Meta-analysis / review
https://doi.org/10.1097/01.HNP.0000343210.56710.fc - Basch, E., Foppa, I., Liebowitz, R., Nelson, J., Smith, M., Sollars, D. and Ulbricht, C (2004) 'Lavender (Lavandula angustifolia Miller)', Journal of Herbal Pharmacotherapy, 4(2), pp. 63-78. doi:10.1080/j157v04n02_07 Meta-analysis / review
https://doi.org/10.1080/j157v04n02_07 - Betlej, I., Andres, B., Cebulak, T., Kapusta, I., Balawejder, M., Zurek, N., Jaworski, S., Lange, A., Kutwin, M., Pisulewska, E., Kidacka, A., Krochmal-Marczak, B., Boruszewski, P. and Borysiuk, P (2024) 'Phytochemical composition and antimicrobial properties of new Lavandula angustifolia ecotypes', Molecules, 29(8), pp. 1740. doi:10.3390/molecules29081740 Preclinical
https://doi.org/10.3390/molecules29081740 - Rahimian, Z., Sadrian, S., Shahisavandi, M., Aligholi, H., Zarshenas, M.M., Abyar, A., Zeraatpisheh, Z. and Asadi-Pooya, A.A (2023) 'Antiseizure effects of Lavandula angustifolia L', BioMed Research International, 2023, pp. 4121998. doi:10.1155/2023/4121998 Preclinical
https://doi.org/10.1155/2023/4121998 - de Melo Alves Silva, L.C., de Oliveira Mendes, F.D.C., de Castro Teixeira, F., de Lima Fernandes, T.E., Barros Ribeiro, K.R., da Silva Leal, K.C., Dantas, D.V. and Neves Dantas, R.A (2023) 'Use of Lavandula angustifolia essential oil as a complementary therapy in adult health care: a scoping review', Heliyon, 9(5), pp. e15446. doi:10.1016/j.heliyon.2023.e15446 Meta-analysis / review
https://doi.org/10.1016/j.heliyon.2023.e15446 - Lejeune, V.B.P., Lopes, R.V., Baggio, D.F., Koren, L.D.O., Zanoveli, J.M. and Chichorro, J.G (2023) 'Antinociceptive and anxiolytic-like effects of Lavandula angustifolia essential oil on rat models of orofacial pain', Journal of Applied Oral Science, 30, pp. e20220304. doi:10.1590/1678-7757-2002-0304 Preclinical
https://doi.org/10.1590/1678-7757-2002-0304 - Mykhailenko, O., Hurina, V., Ivanauskas, L., Marksa, M., Skybitska, M., Kovalenko, O., Lytkin, D., Vladymyrova, I. and Georgiyants, V (2024) 'Lavandula angustifolia herb from Ukraine: comparative chemical profile and in vitro antioxidant activity', Chemistry & Biodiversity, 21(9), pp. e202400640. doi:10.1002/cbdv.202400640 Preclinical
https://doi.org/10.1002/cbdv.202400640 - Shamabadi, A. and Akhondzadeh, S (2021) 'Efficacy and tolerability of Lavandula angustifolia in treating patients with the diagnosis of depression: a systematic review of randomized controlled trials', Journal of Complementary & Integrative Medicine, 20(1), pp. 81-91. doi:10.1515/jcim-2020-0498 Meta-analysis / review
https://doi.org/10.1515/jcim-2020-0498 - Cardia, G.F.E., Silva-Filho, S.E., Silva, E.L., Uchida, N.S., Cavalcante, H.A.O., Cassarotti, L.L., Salvadego, V.E.C., Spironello, R.A., Bersani-Amado, C.A. and Cuman, R.K.N (2018) 'Effect of lavender (Lavandula angustifolia) essential oil on acute inflammatory response', Evidence-Based Complementary and Alternative Medicine, 2018, pp. 1413940. doi:10.1155/2018/1413940 Preclinical
https://doi.org/10.1155/2018/1413940 - Aboalhaija, N.H., Syaj, H., Afifi, F., Sunoqrot, S., Al-Shalabi, E. and Talib, W (2022) 'Chemical evaluation, in vitro and in vivo anticancer activity of Lavandula angustifolia grown in Jordan', Molecules, 27(18), pp. 5910. doi:10.3390/molecules27185910 Preclinical
https://doi.org/10.3390/molecules27185910 - Caputo, L., Reguilon, M.D., Minarro, J., De Feo, V. and Rodriguez-Arias, M (2018) 'Lavandula angustifolia essential oil and linalool counteract social aversion induced by social defeat', Molecules, 23(10), pp. 2694. doi:10.3390/molecules23102694 Preclinical
https://doi.org/10.3390/molecules23102694 - European Medicines Agency (HMPC) (2012) 'Community herbal monograph on Lavandula angustifolia Miller, flos'. Available at: https://www.ema.europa.eu/en/documents/herbal-monograph/final-community-herbal-monograph-lavandula-angustifolia-p-mill-flos_en.pdf Traditional / reference
https://www.ema.europa.eu/en/documents/herbal-monograph/final-community-herbal-monograph-lavandula-angustifolia-p-mill-flos_en.pdf - Cavanagh, H.M.A. and Wilkinson, J.M (2002) 'Biological activities of lavender essential oil', 16(4), pp. 301--308. doi:10.1002/ptr.1103 Traditional / reference
https://doi.org/10.1002/ptr.1103 - Lis-Balchin, M (2002) 'Lavender: The Genus Lavandula'. Traditional / reference
https://scholar.google.com/scholar?q=Lavender%3A%20The%20Genus%20Lavandula - Schuwald, A.M. et al (2013) 'Lavender oil-potent anxiolytic properties via modulating voltage dependent calcium channels', 8(4). doi:10.1371/journal.pone.0059998 Randomized trial
https://doi.org/10.1371/journal.pone.0059998 - 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 - Ghasemzadeh Rahbardar, M. and Hosseinzadeh, H (2024) 'Therapeutic potential of hypnotic herbal medicines: A comprehensive review', Phytotherapy Research, 38(6), pp. 3037-3059. doi:10.1002/ptr.8201 Meta-analysis / review
https://doi.org/10.1002/ptr.8201 - Block, K.I., Gyllenhaal, C. and Mead, M.N (2004) 'Safety and efficacy of herbal sedatives in cancer care', Integrative Cancer Therapies, 3(2), pp. 128-148. doi:10.1177/1534735404265003 Meta-analysis / review
https://doi.org/10.1177/1534735404265003 - Dold, M., Bartova, L., Volz, H.P., Seifritz, E., Moller, H.J., Schlafke, S. and Kasper, S (2023) 'Efficacy of Silexan in patients with anxiety disorders: a meta-analysis of randomized, placebo-controlled trials', European Archives of Psychiatry and Clinical Neuroscience, 273(7), pp. 1615-1628. doi:10.1007/s00406-022-01547-w Meta-analysis / review
https://doi.org/10.1007/s00406-022-01547-w - Bent, S., Padula, A., Moore, D., Patterson, M. and Mehling, W (2006) 'Valerian for sleep: a systematic review and meta-analysis', The American Journal of Medicine, 119(12), pp. 1005-1012. doi:10.1016/j.amjmed.2006.02.026 Meta-analysis / review
https://doi.org/10.1016/j.amjmed.2006.02.026 - Haybar, H., Javid, A.Z., Haghighizadeh, M.H., Valizadeh, E., Mohaghegh, S.M. and Mohammadzadeh, A (2018) 'The effects of Melissa officinalis supplementation on depression, anxiety, stress, and sleep disorder in patients with chronic stable angina', Clinical Nutrition ESPEN, 26, pp. 47-52. doi:10.1016/j.clnesp.2018.04.015 Randomized trial
https://doi.org/10.1016/j.clnesp.2018.04.015 - Amsterdam, J.D., Li, Y., Soeller, I., Rockwell, K., Mao, J.J. and Shults, J (2009) 'A randomized, double-blind, placebo-controlled trial of oral Matricaria recutita (chamomile) extract therapy for generalized anxiety disorder', Journal of Clinical Psychopharmacology, 29(4), pp. 378-382. doi:10.1097/JCP.0b013e3181ac935c Randomized trial
https://doi.org/10.1097/JCP.0b013e3181ac935c
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.