Omnia SanaPlant Comparison
Arnica vs Noni
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 Noni: they share 9 indicated uses (arthritis / joint pain, back pain, cancer (anticancer research), …); 5 pharmacological actions in common.
Evidence face-off — shared uses
| Condition | Arnica | Noni | Verdict |
|---|---|---|---|
| Arthritis / joint pain | 7/10 | 2/10 | Stronger for Arnica |
| Back pain | 7/10 | 2/10 | Stronger for Arnica |
| Cancer (anticancer research) | 2/10 | 7/10 | Stronger for Noni |
| Headache | 7/10 | 2/10 | Stronger for Arnica |
| Infection (general) | 1/10 | 2/10 | Comparable evidence |
| Inflammation (general) | 7/10 | 2/10 | Stronger for Arnica |
| Pain (general) | 7/10 | 2/10 | Stronger for Arnica |
| Skin irritation | 7/10 | 2/10 | Stronger for Arnica |
| Wounds | 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
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.
A major phytochemical class of noni fruit and leaf, studied for antioxidant and anti-inflammatory activity.
Found mainly in the root and, at lower levels, the fruit; studied for anticancer and antimicrobial activity.
Fruit polysaccharides studied for gut-microbiota-modulating and anti-inflammatory effects in animal models of inflammatory bowel disease.
A phenolic coumarin found in the fruit, studied for anti-inflammatory and vascular effects.
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 antidiabetic action
inferred from anticancer action
inferred from antimicrobial action
inferred from anti-inflammatory action
inferred from antidiabetic 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 safe in moderate amounts. High potassium content — use caution in renal disease. Rare cases of hepatotoxicity reported with excessive consumption. May interact with warfarin (due to vitamin K content). Avoid during pregnancy.
Duke (2002) rates noni as +++ and notes analgesic, antirheumatic, antiarthritic, antitumor, antispasmodic, and hypotensive activities at the experimental level (score 1). Traditional Polynesian and South Asian medicine values it as a broad-spectrum tonic. The plant contains morindine, proxeronine, and damnacanthal, which are under investigation for immunomodulatory and anti-tumor effects. Duke notes that noni fruit can be consumed as food and is generally safe, though the juice has a strong unpleasant odor and taste. No significant toxicity has been reported with regular food consumption (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]
Small evergreen tree or shrub (Rubiaceae), 3-10 m tall, with large, glossy, dark green, elliptical leaves marked by prominent parallel veins. Small, white, tubular, fragrant flowers are borne in dense rounded heads, developing into a compound fleshy fruit (syncarp) that is warty, semi-translucent and yellow-white when ripe, with a strong, pungent, cheese-like odour.[1]
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 Southeast Asia and Australasia, and dispersed across the Pacific islands and into India and the Caribbean by early Polynesian voyagers and subsequent cultivation; grows in coastal areas, open and disturbed forest, and even on bare lava flows, tolerating poor, saline and drought-prone soils.[1, 6]
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]
Ripe fruit is hand-picked as it softens and turns yellow-white, then traditionally left to further ripen or ferment for juice production; leaves and root are also traditionally gathered.[6]
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]
Noni has an extensive Polynesian, South Asian and Southeast Asian traditional-medicine history, used as a broad-spectrum tonic for pain, inflammation, infection and immune support, and traditionally for diabetes and skin complaints. The fermented fruit juice is the most widely used modern preparation, now studied for antioxidant, anti-inflammatory, immunomodulatory and metabolic effects supporting several of these traditional uses.[1, 6]
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.
Commercial noni juice is typically taken in modest daily amounts (a few tablespoons); given rare reports of hepatotoxicity with excessive or prolonged intake, avoid high doses, especially with pre-existing liver disease. Educational reference only, not a prescription.
References
Lookalikes Review
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
- Potterat, O. and Hamburger, M (2007) 'Morinda citrifolia (Noni) fruit--phytochemistry, pharmacology, safety', Planta Medica, 73(3), pp. 191-199. doi:10.1055/s-2007-967115 Meta-analysis / review
https://doi.org/10.1055/s-2007-967115 - Brown, A.C (2012) 'Anticancer activity of Morinda citrifolia (Noni) fruit: a review', Phytotherapy Research, 26(10), pp. 1427-1440. doi:10.1002/ptr.4595 Meta-analysis / review
https://doi.org/10.1002/ptr.4595 - Almeida-Souza, F., de Souza, C.S., Taniwaki, N.N., Silva, J.J. and others (2016) 'Morinda citrifolia Linn. fruit (Noni) juice induces an increase in NO production and death of Leishmania amazonensis amastigotes in peritoneal macrophages from BALB/c', Nitric Oxide, 58, pp. 51-58. doi:10.1016/j.niox.2016.06.004 Preclinical
https://doi.org/10.1016/j.niox.2016.06.004 - Wang, R., Wang, L., Wang, S., Wang, J. and others (2022) 'Phenolics from noni (Morinda citrifolia L.) fruit alleviate obesity in high fat diet-fed mice via modulating the gut microbiota and mitigating intestinal damage', Food Chemistry, 402, pp. 134232. doi:10.1016/j.foodchem.2022.134232 Preclinical
https://doi.org/10.1016/j.foodchem.2022.134232 - Yoshitomi, H., Zhou, J., Nishigaki, T., Li, W. and others (2020) 'Morinda citrifolia (Noni) fruit juice promotes vascular endothelium function in hypertension via glucagon-like peptide-1 receptor-CaMKKbeta-AMPK-eNOS pathway', Phytotherapy Research, 34(9), pp. 2341-2350. doi:10.1002/ptr.6685 Preclinical
https://doi.org/10.1002/ptr.6685 - Almeida, E.S., de Oliveira, D. and Hotza, D (2019) 'Properties and Applications of Morinda citrifolia (Noni): A Review', Comprehensive Reviews in Food Science and Food Safety, 18(4), pp. 883-909. doi:10.1111/1541-4337.12456 Meta-analysis / review
https://doi.org/10.1111/1541-4337.12456 - Kim, S.H., Seong, G.S. and Choung, S.Y (2020) 'Fermented Morinda citrifolia (Noni) Alleviates DNCB-Induced Atopic Dermatitis in NC/Nga Mice through Modulating Immune Balance and Skin Barrier Function', Nutrients, 12(1), pp. 249. doi:10.3390/nu12010249 Preclinical
https://doi.org/10.3390/nu12010249 - Jin, M.Y., Wu, X.Y., Li, M.Y., Li, X.T. and others (2021) 'Noni (Morinda citrifolia L.) Fruit Polysaccharides Regulated IBD Mice Via Targeting Gut Microbiota: Association of JNK/ERK/NF-kappaB Signaling Pathways', Journal of Agricultural and Food Chemistry, 69(35), pp. 10151-10162. doi:10.1021/acs.jafc.1c03833 Preclinical
https://doi.org/10.1021/acs.jafc.1c03833 - Lee, D., Yu, J.S., Huang, P., Qader, M. and others (2020) 'Identification of Anti-Inflammatory Compounds from Hawaiian Noni (Morinda citrifolia L.) Fruit Juice', Molecules, 25(21), pp. 4968. doi:10.3390/molecules25214968 Preclinical
https://doi.org/10.3390/molecules25214968 - Ma, L.D., Lin, G.B., Yang, L.B., Cao, J.L. and others (2021) 'Morinda citrifolia (Noni) Juice Suppresses A549 Human Lung Cancer Cells via Inhibiting AKT/Nuclear Factor-kappaB Signaling Pathway', Chinese Journal of Integrative Medicine, 27(9), pp. 688-695. doi:10.1007/s11655-020-3421-y Preclinical
https://doi.org/10.1007/s11655-020-3421-y - Hirazumi, A. and Furusawa, E (1999) 'An immunomodulatory polysaccharide-rich substance from the fruit juice of Morinda citrifolia', 13(5), pp. 380--387. Preclinical
https://scholar.google.com/scholar?q=An%20immunomodulatory%20polysaccharide-rich%20substance%20from%20the%20fruit%20juice%20of%20Morinda%20citrifolia - Potterat, O. and Hamburger, M (2007) 'Morinda citrifolia (Noni) fruit — phytochemistry, pharmacology, safety', 73(3), pp. 191--199. doi:10.1055/s-2007-967115 Preclinical
https://doi.org/10.1055/s-2007-967115 - West, B.J., Jensen, C.J., Westendorf, J. and White, L.D (2006) 'A safety review of noni fruit juice', 71(8). doi:10.1111/j.1750-3841.2006.00164.x Traditional / reference
https://doi.org/10.1111/j.1750-3841.2006.00164.x - 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
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.