Understanding the material
Bark oils and leaf oils are different supplied materials, and species and grade need to be read on the supplier documentation. Cinnamon-like effects can also come from manufactured aroma ingredients: IFF describes Cinnamalva as a cinnamon-like fragrance material. A cinnamon note therefore does not establish that a bark oil is present in a finished formula.
Compare a cinnamon-themed amber with a vanilla fragrance. Separate the impression of spice from sweetness, then ask whether the woodier background remains perceptible.
Explore the relationships
Continue with Cardamom, Benzoin, Vanilla. These connections are comparisons for studying finished fragrances, rather than mixing instructions.
Technical references
Supplier references describe their specific materials. The botanical image is illustrative and does not certify species, provenance, grade or ingredients in a finished perfume.