Immune Protect Essential OilImmune Protect The oils in this blend were created from research recorded in the archives of the British Museum library about a group of 14th century European perfumers and spice traders (aka thieves) who, during the Black Plague, rubbed oils on themselves and on masks while they robbed the dead and dying. Today it is still used to help ward off bacterial and viral infections and purify rooms in which the sick have been in. Ingredients Clove Lemon