Essential oils (EO’s) are extremely complex in nature. They have between 200-500 different chemical components. And it is because of this diffuse chemical structure, that essential oils have a wide range of healing properties. However, only high quality (EO’s) will be extremely complex. When you use lower quality essential oils, many of the nuances associated with that oil, will no longer be there. For instance, both high and low quality essential oils may work well topically, but when applied subtlety (energetically), only the higher quality EO will actually work.
Adulteration is another reason to buy high quality essential oils and to know your supplier. What are their essential oils standards? Where are they getting their essential oils? Are the essential oils processed at a low temperature? All of these questions are relevant when looking for high quality oils.
It is also important to buy organic and/or wildcrafted essential oils whenever possible. Any pesticides used when the plant were grown, will become concentrated during processing.