Like the improvised riffs carried from a jazz trumpet, touching notes high and low, blended oils have an affinity to science and a passion for creativity.
An essential oil blend is prepared for various therapeutic and aesthetic effects. The blending process isn’t difficult. All it takes is creativity, along with a clear sense of the purpose of the blend. A successful blend requires knowledge about the properties of essential oils and experience in balancing the different aromas to achieve the desired result.
When therapeutic blending of essential oils is used for health applications, the blends are often more effective than using any single oil alone. Blends usually consist of two or more essential oils. Some oils, when combined, complement and enhance each other to create a synergy with one another. Conversely, improperly chosen oils can work against each other when blended, so it is best to thoroughly research each oil before making therapeutic blends. When blending for fragrance or perfume, keep in mind the qualities of the blend in order to create a pleasing aromatic mixture.
Top, Middle, Base Notes
In the fragrance industry, scents are often described as top, middle, or base notes, depending on their aromatic nature—much like the different layers in a piece of music.
Top notes are like the high notes or melodies in a song—they are light, bright, and immediately noticeable. These are the most volatile components of a blend and are considered stimulating and refreshing. Examples include grapefruit, eucalyptus, lemon, bergamot, and pine.
Middle notes are like the harmonies or chords that support the melody. They are soft, balanced, and usually make up the heart of the blend. Middle notes emerge once the top notes begin to fade, giving depth and fullness to the composition. Examples include Roman chamomile, lavender, geranium, and juniper.
Base notes are like the bass line in a musical composition—deep, heavy, and long-lasting. They have the lowest evaporation rate and act as the natural adhesive agent in a blend, anchoring the lighter notes and adding lasting depth. Examples include patchouli, myrrh, and ylang ylang.
When testing a blend on a blotter or strip, the top note is the first impression, the middle note emerges as the top fades, and the base note lingers after all volatile components have evaporated, providing the lasting foundation of the scent.
Blending Tips
Allow blends to age a week or more before adding them to carrier oils.
Usually, a 10%–15% dilution of essential oil into a carrier oil is appropriate.
Blends change as they age, especially in the case of perfume blends.
Pour your finished blend into a small bottle (glass bottles are best).
Aromatherapy blends should be kept cool, in a dark area and away from direct sunlight.