OH, MY, this is good - really good. Share it with everyone. This is what sets YL apart from other companies. This information comes from Kurt Schnaubelt's blog under the title of "The Human Element I". He is the director of Pacific Institute of Aromatherapy.
"Clearly one cannot do this every time for every oil on the list. But we believe that the contact to the actual producer is an indispensable element of every attempt to procuring authentic oils. In our experience adulteration never happens at the level of the producer. The know how to reconstruct, standardize or adjust essential oils is found in the big brokerages who often can sell essential oils for less than they cost at the source."
If you'd like to read more you can find the complete article here: http://www.kurtschnaubelt.com/category/dailyposts/