Essential oils are classified by their notes or scent characteristics.
Top Notes gives the first impression of the blend. They evaporate quickly and, their aromas do not last long.
Middle Notes are the heart of the aroma; they give body to the blend and have a balancing effect. The aroma of the middle notes may take a couple of minutes to detect.
Base Notes are normally very heavy. Their aroma is solid and long-lasting. Base notes slow down the evaporation of the other oils. These fragrances are often pungent.
To create a harmonious blend, aim for a combination of all three notes (see below for balances). Please note – essential oils that are very strong can overtake your blend. Experiment with these drop by drop.