Arnica
Also known as: Arnica montana, mountain arnica, wolf's bane, leopard's bane
Effective Dosage
No established dose — topical application only; oral use is toxic
What the Science Says
Arnica is a flowering plant used topically for centuries to treat bruises, swelling, and muscle soreness. Some clinical trials suggest topical arnica may reduce pain and jaw stiffness after dental surgery, and a mud pack containing arnica may modestly speed muscle recovery after intense exercise. Early-phase research also shows promise for treating a tropical skin infection called cutaneous leishmaniasis, though studies are small and preliminary.
What It Doesn't Do
Won't reduce bruising or swelling after cosmetic eyelid surgery — a well-designed RCT found no benefit over placebo. Not proven to help after Botox or filler injections despite heavy social media promotion. Social media hype far outpaces the actual science. Do not take arnica by mouth — it is toxic internally.
Evidence-Based Benefits
Arnica is a flowering plant used topically for centuries to treat bruises, swelling, and muscle soreness. Some clinical trials suggest topical arnica may reduce pain and jaw stiffness after dental surgery, and a mud pack containing arnica may modestly speed muscle recovery after intense exercise. Early-phase research also shows promise for treating a tropical skin infection called cutaneous leishmaniasis, though studies are small and preliminary.
Weak EvidenceEffective at: No established dose — topical application only; oral use is toxic
Source: auto-research
Absorption & Bioavailability
Poor systemically — topical arnica is designed to stay in the skin and does not significantly enter the bloodstream, which limits systemic effects but also reduces risk of toxicity
Red Flags to Watch For
- Oral ingestion of arnica is toxic and potentially fatal — only use topically
- Social media and influencer promotion of arnica for cosmetic procedures (fillers, Botox) is not backed by clinical evidence
- Many products combine arnica with other ingredients (e.g., menthol, homeopathic compounds), making it impossible to isolate arnica's actual effect
- Homeopathic arnica products are so diluted they contain essentially no active ingredient — do not confuse with herbal tinctures or ointments
- Allergic reactions (contact dermatitis) are possible, especially in people allergic to plants in the daisy/Asteraceae family
Products Containing Arnica
See how Arnica is used in these analyzed products:
Research Sources
- PubMed
- NIH DSLD
This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-04-12