Once you have decided what kind of aromatherapy blend you want to make, you will be ready to start. Work your blend out on paper first to avoid mistakes. Start with the heaviest pure essential oils, or base notes. These will be the thick, full-bodied essences such as patchouli, cedarwood and sandalwood. Then add the middle notes.
Middle notes comprise the majority of the blend.
They are the scents that round out the extremes of the top and base notes. Lavender and marjoram are good examples of middle notes. Lastly, add the top notes. These are the sharp, terse scents that are the first to hit the nose. Most citrus oils are top notes, as are eucalyptus and peppermint.