HerbilousOpen the interactive guideHERB PROFILE · EDUCATIONAL REFERENCE
Comfrey Leaf
Important safety information: Leaves contain liver-toxic pyrrolizidine alkaloids. Internal leaf tea is practitioner-directed only, using authenticated quality-controlled material after individual risk assessment; never substitute root. Avoid pregnancy, breastfeeding, children, liver disease, broken skin and prolonged or large-area use unless specifically assessed.
Herbal actions
- Traditional topical vulnerary
- soothing external herb
- anti-inflammatory in vitro
Traditional and practitioner uses
These uses are presented for historical and educational context. They are not treatment claims.
- Traditional external use for minor bruises and strains
- Traditional leaf tea prescribed by some qualified herbal practitioners
- Internal use is not suitable for self-prescribing
Main constituents
Allantoin, mucilage, rosmarinic acid, tannins, pyrrolizidine alkaloids
Preparation overview
Tea: Qualified practitioner direction only. Use only authenticated, quality-controlled leaf when prescribed by a qualified practitioner. Do not substitute comfrey root.
Liquid extract reference: External only
Preparation strengths are not interchangeable. Open the interactive guide for the complete evidence notes and sources available for this herb.
Herbilous provides educational information only. It does not diagnose, prescribe, or replace professional medical advice. Seek urgent care for severe or worsening symptoms.