What does that mean?
doTERRA conducts 54 separate tests to ensure purity and efficacy of our product. Eleven are performed by Aromatic Plant Research Center (APRC) and 43 are performed inside doTERRA's state-of-the-art testing labs. No other company can afford nor manage the processes executed by doTERRA.
This is why doTERRA essential oils are so resonant, pure and also effective.