Scientifically studied properties include: anti-inflammatory, antimicrobial, antioxidant, anticancer, immunomodulatory, antifungal, antiseptic, antiplatelets and analgesic.
Most modern research into Arnica (Arnica montana) focuses on its use as an anti-inflammatory agent, particularly among those who have undergone surgery or sustained an injury and are dealing with pain, bruising and swelling. Arnica likely has multiple mechanisms of action, but pharmacological literature highlights the herb’s sesquiterpene lactones, plant compounds that easily pass through the skin and interact with nuclear factor kappa B (NF-KB), a protein involved in gene expression. NF-KB plays a role in mediating the body’s inflammatory response, so by impacting its function, sesquiterpene lactones can potentially reduce symptoms related to inflammation.
While inflammation can be uncomfortable, it’s important to note that it’s a critical part of the body’s protective response to harmful substances and stimuli, like viruses, bacteria and pathogens. However, chronic or excessive inflammation can lead to additional health problems and serious medical complications.
Considerations: Arnica should not be taken orally, as ingestion can cause severe toxicity and death. Topical use is generally safe, but Arnica should not be applied to broken skin or open wounds. Arnica may act as a blood thinner and anticoagulant. If you are on medication for liver disease, kidney disease or high blood pressure, or if you take other herbal supplements, consult with a doctor, as Arnica may interact with other drugs and herbs.
Arnica is not considered safe for children, pregnant people and those who are breastfeeding. Additionally, some people who are sensitive to plants in the Asteraceae (daisy) family may experience an allergic reaction. If you notice any redness or irritation of the skin, discontinue use.
