Key Terms at a Glance
Use this glossary to quickly understand the language you will see across oil profiles, brand comparisons, and beginner guides.
Basics
Core oil terms
Essential oil: a concentrated aromatic extract from plant material. Carrier oil: a neutral oil used to dilute essential oils before topical use. Aroma profile: the scent characteristics commonly associated with an oil.
Quality
Label and sourcing terms
Botanical name: the Latin plant name used for identification. Chemotype: a chemically distinct variation within the same plant species. Country of origin: where the plant was grown or harvested.
Use
Application and safety
Topical use: applying a diluted oil to skin. Diffusion: dispersing aromatic compounds into the air. Patch test: a small-area skin test used to check for sensitivity before broader use.
How to use this page
Definitions here are educational and simplified for readers comparing products and learning terminology. They are not medical claims, treatment guidance, or proof of product quality on their own. When relevant, cross-check terms against ingredient labels, sourcing details, and third-party testing information.