Delightfully comforting and warming, cinnamon leaf (Cinnamomum verum) is ideal for home care and diffusion. Aura Cacia Cinnamon Leaf Essential Oil has a powerfully warm and spicy aroma derived from the cinnamon trees growing in Sri Lanka. Also known as “Ceylon” or “true” cinnamon, cinnamon leaf oil is distilled from the leaves of the same tree that produces cinnamon bark oil. Although both are similar in usage, cinnamon leaf oil is chemically a little closer to clove bud oil. What is the difference between cinnamon leaf and cinnamon bark essential oils? Cinnamon leaf oil is distilled from the leaves of the same tree that produces cinnamon bark oil. Although both are similar in usage, cinnamon leaf oil is chemically a little closer to clove bud oil.