Drawing Salve has many formulations. The black salve ointment is often formulated from the NorthEastern American plant, Sanguinaria canadensis. Common names for this herb are bloodroot and red root. Caution should be taken when using drawing salve because modern ingredients may contain zinc chloride and the plant extract sanguinarine. Zinc chloride and the plant extract, sanguinarine, are toxic to the tissue as a corrosive, which damage or destroy what they touch. Two Feathers Healing Formula is a safe alternative to zinc chloride drawing salves.