Our single oils, which are the foundation of our line, have already been tested (GC/MS). Our blends are regularly tested by many practitioners, including doctors (M.D., N.D., D.D.S.). Over 75% of our blends are ordered by these offices and many of those offices use A.R.T.(Autonomic Response Testing) to independently assess energetically the appropriateness of these blends for each patient at each and every office visit. Many of these doctors are also our best customers and continue to “test” our blends. Finally, Stacy (CEO and Founder) tests all of the blends as well.