Essential oils evaporate at varying degrees. The oils which evaporate the fastest are eucalyptus and orange.

The oils which evaporate the slowest are patchouli and sandalwood. Between these two extremes are other essential oils which evaporate at varying speeds.

These scales of evaporation have been divided into three sections:

TOP NOTES lightest oils, evaporate quickly
MIDDLE NOTES in between
BASE NOTES heaviest oils, evaporate slowly

When you create an essential oil blend, you should have a combination of the three notes. It is very important to use a good balance when creating oil blends.

When you first smell a blend of oils or a perfume, the scent you first become aware will be that of the TOP NOTE.

The BASE NOTES are utilized to hold back the oils which evaporate more quickly as well as to make the scent or aroma last as long as possible.

  • These are the fastest acting essences e.g.. Eucalyptus and Lemon.
  • In general, these oils are uplifting and stimulating.
  • They are effective in conditions of mental exhaustion and where someone shows a lack of interest in life.
  • These oils are the most commonly used.
  • Most spices and herbs are in this category.
  • These oils affect the functions of the body, metabolism and digestion.
  • Base note oils apply to the purely cellular domain and the quality of the tissue is influenced.
  • Most gums and wood are base note oils.
  • These oils are known to act on mucus membranes.
  • Base note oils are very valuable in the treatment of chronic conditions.
  • These are some of the essences used by man in ancient times.
  • Base note oils are very effective when treating the elderly.
At least one middle note essential oil should be part of every blend as it is the crucial link between the base note oil(s) and top note oil(s).