In 19 century, there was a French named Phies. He classify the fragrances according to notes on music.
When the different fragrances combined together, they achieve harmony, just like the combination of
chord and overtone.
Nowadays it is not adopted anymore to deploy essential oil like that. But oils are clarified into three notes
-- top note, middle note and base note.
Top note: Oil with high volatility will volatilize immediately when it is exposed to environment. It features
by freshness and elegance.
Middle note: It appears when top tone takes off. It is the core of mixed fragrances. So it shares high
proportion during deployment.
Base note: This is the essence of dense fragrance. Its volatilization is slow but long-lasting.
So it has Top tone oils (from): tea tree, eucalyptus, citrus, lemon, basil;
Middle tone oils (from): geranium, lavender, marjoram, rosewood, rosemary;
Base note oils (from): patchouli, rose, jasmine, benzoin, frankincense, myrrh.
The function to keep fragrance, avoiding that it volatilizes too fast.
It’s said that ylang ylang essential oil is the one which has three notes at the same time. It has like sweet
potpourri top note, dense middle note and light but with bit of pungent potpourri base note. For the sake
of simplicity, generally essential oils are clarified based on three notes.
Below are the samples for reference: If one perfume would like to have harmony fragrances, it will contain
all the three notes. While the different proportions of notes will decide the perfume belonging to oriental
type or floral type. Through classification of essential oils is used in perfume industry, it also can be adopt
to deploy personalized perfume for aromatherapy.
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