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HFL Health Findings Lab

Arnica

A botanical extract traditionally used in topical preparations to support recovery from bruises, sprains, and muscle soreness.

Evidence-Based
Fact-Checked
Updated: Sep 11, 2026
Clinical Profile

Quick Reference

Scientific Rating
3.8
/ 5.0
Primary Mechanism
Contains sesquiterpene lactones (e.g., helenalin) that may inhibit the transcription factor NF-kappaB, reducing inflammation
Standardized Form
Topical extract, tincture, or gel

Arnica montana is a perennial herb native to mountainous regions of Europe and North America. Its flowers are utilized in topical gels and creams for their purported anti-inflammatory properties. While commonly found in homeopathic dilutions, standardized herbal extracts of Arnica contain sesquiterpene lactones that have demonstrated anti-inflammatory activity in preclinical models.

Clinical Summary

Clinical trials present mixed results, though some studies suggest topical Arnica gel can be as effective as topical NSAIDs (like ibuprofen gel) for hand osteoarthritis and post-exercise muscle soreness.

Dosage Guidelines

Apply a thin layer to the affected area 2 to 3 times daily.

Safety & Side Effects

Prolonged topical use can cause contact dermatitis, itching, and dry skin. Strictly contraindicated for use on broken skin.

Known Interactions

No major known interactions when used topically on intact skin.

Scientific References

Medical Disclaimer

The information provided in this clinical review is for educational and informational purposes only. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment.

*These statements have not been evaluated by the Food and Drug Administration (FDA). This product or ingredient is not intended to diagnose, treat, cure, or prevent any disease.

Always consult your physician or other qualified health provider with any questions you may have regarding a medical condition, or before beginning any new diet, fitness, supplement, or treatment regimen, especially if you have pre-existing medical conditions or are taking prescribed medications.

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