The roots and leaves contain the valuable cell-proliferant allantoin.
It is a perennial herb of the family Boraginaceae with hairy broad leaves. Allantoin is absorbed through the skin, which speeds up the natural replacement of body cells by stimulating the growth of new cells.
Comfrey has been used through the ages to treat a wide variety of ailments ranging from bronchial problems, broken bones, sprains, arthritis, gastric and varicose ulcers, severe burns, acne and other skin conditions.see Wikipedia
Comfrey has emollient properties which aid skin softening when used on chapped lips and cracked hands and feet.
Comfrey is an excellent source of vitamins A and C and is one of the few plants that can extract B-12 from the soil. It is also high in calcium, potassium, manganese, iron, zinc and magnesium.
Although comfrey root is highly esteemed as a vulnerary (healer of wounds), it has come under fire in recent years because it contains a group of alkaloids (pyrollizidine) that are considered hepatoxic (harmful to the liver.) It is not recommended for internal use.
Note: For External use only & Comfrey should not be applied to an open wound.
HOW TO: Process Comfrey Root into a powder