Comfrey is one of the most popular medicinal plants for external use and its name is derived from the Latin 'confervere' which means 'to bring together'. It has been used for centuries for its anti-inflammatory capacity when bones were to be set and the healing process hastened, thus earning the herb its common names, 'Knitbone' and 'Boneset'. Active Ingredients: Contains tincture equivalent to Symphytum officinale root & rhizone dry 24 mg/g. Features Available in convenient, durable, tamper-evident tubes. Rapidly absorbed into the affected skin area. Water-based, non-greasy and gentle. Compatible with most skin types.