Comfrey Oil (Symphytum Officinale) Comfrey oil contains tannins, glycosides and is an excellent source of B12, so very appropriate in creams for vegetarians and vegans who are short of this essential vitamin. It also contains a vegetable protein and is cell proliferant, rebuilding damaged cells. In creams, it can repair damage caused by surgery, acne, or eczema and is an essential vegetable oil for your healing preparations. In cream and lotion preparations for athletes, it aids torn muscles, ligaments and strains. In preparations for mature women, it assists in the treatment and prevention of osteoporosis.