← Back to all herbs
Comfrey
Symphytum officinale
wound
bone
topical
healing
cell proliferation
Common Uses
- External wound healing and bone knitting, cell proliferation
- Contains allantoin
- NOT for internal use due to liver toxicity
How to Use
- Leaf
- Root
- Topical Poultice
Research Strength
Traditional wound herb with strong cell proliferation properties (allantoin). Internal use banned in many countries due to liver toxicity from PAs. External use effective.
⚠ Warnings & Side Effects
FOR EXTERNAL USE ONLY. Internal use causes liver toxicity (pyrrolizidine alkaloids). Do not use on deep wounds or broken skin long-term.
⚠ Drug Interactions
Do not use internally - causes serious liver damage. External use minimal interactions.
Disclaimer: The information on this page is for educational purposes only and is not intended as medical advice. Always consult a qualified healthcare provider before using any herbal remedy, especially if you are pregnant, nursing, or taking medications.
← Browse all herbs