resources & references
Detailed and medically focused.
Good, historical review and coverage.
Brief, general overview.
Personal, thorough review by professional, including illustrations.
Historical review of usage.
Informed account using comfrey to heal radiation burn and other common skin burns.
An MD’s account of healing herbs, specifically mentioning comfrey and calendula.
Excellent account describing benefits of chili peppers active ingredient, capsaicin.
Straightforward account of allantoin, its sources and usage. Comfrey’s primary active ingredient is allantoin.
References earlier texts involving comfrey and cancer.
Medically reviewed, concise, thorough commentary on history, uses, risks and benefits.