Comfrey roots and leaves contain allantoin, a substance that helps new skin cells grow, along with other substances that reduce inflammation and keep skin healthy. Comfrey ointments have been used to heal bruises, pulled muscles and ligaments, fractures, sprains, strains, rheumatoid arthritis and osteoarthritis.
Active ingredients: Allantoin, rosmarinic acid, flavonoids, terpenoids, triterpenes, triterpene saponins, sterols, and more
Alternate names: Boneset, knitbone, black wort, wallwort, and slippery root
Suggested dose: 2-4 grams on the skin, three times a day
Safety considerations: Not studied in children less than 3 years old; not recommended during pregnancy or breastfeeding