Thieves Essential Oil blend is a powerful combination of Clove, Lemon, Cinnamon Bark, Eucalyptus Radiata,and Rosemary essential oils that has been adapted from an very old, traditional formula. It's cleansing, antiseptic, neutralizing and purifying, Thieves Oil has many uses: aromatic, massage, topical use, dilutions. Famous for its pleasant spicy aroma. Thieves Oil From Young Living.