Proportion of each oil in therapeutic oil is crucial to treatment. Many aromatherapy books have introduced special-purpose prescriptions for symptoms. When some oils are deployed together, its effect can be complementary or enhanced, more powerful than that of single pure oil. For example, the anti-inflammatory effect of chamomile oil and lavender oil mixture is much better than that of single chamomile oil. So oil synergy refers to when complementary oils are deployed together, its effect is more powerful than that of each singe oil. Thus we call such deployed oil synergy oils.
“In order to get better synergy oil, we should know more about pathogeny, body inner condition, mental factors and emotional factors besides symptoms ”, said Mrs Murray during treatment. She not only take patients’ body condition into consideration, but also their incidents and characters.
Generally oils from same genus are suitable for deploying, the same with oils with identical components. For example, camphor type oil has high dineole inside, all the oils from myrtaceae plants(eucalyptus, tea tree, cajeput, myrtle, etc) and spike lavender, rosemary, Spanish sage, etc. can be well deployed with camphor type oil. The majority of floral odor oils, woody oil, resins oil, orange kind oil, spicy kind oil can be deploy well together. Some oils may belong to different genus, but they share the same components and similar components content, so they also can be deployed together well. For example, rosewood oil and linaloe oil, they both have high proportion of agarol and linalyl acetate, so they can be deployed well together.
Some oils can nearly enhance the effects of all oils, such as rose oil, jasmine oil, oak moss oil. So there is a saying goes in perfume field “No rose oil, no perfume.” While some oils if deployed together, their effects will be mutually inhibited. For example oils mainly with aldehyde component (like citronellal in citronella), oils with high proportion of ketone (like thujone in sage), oils with high proportion of phenol (like eugenol in clove), if such oils are deployed together, their effects will conflict with each other. So only knowing the chemical composition of oils is far from deploying out good synergy oils. Knowing the features and specialty of oils are highly required, together with the help of your intuition.