To ensure each bottle of essential oil is pure and free of contaminants or synthetic fillers, doTERRA created the CPTG Certified Pure Tested Grade ® protocol.

To ensure that each bottle of essential oil is pure and free from contaminants or synthetic fillers, doTERRA created the CPTG™ Certified Pure Tested Grade process. The CPTG process includes a rigorous examination of every batch of oil, along with third-party testing to …

Make sure you are using pure essential oils sourced from the best plants. Doterra ensures their oils are pure and free of contaminates through CPTG testing.

doTERRA's Certified Pure Tested Grade® (CPTG) protocol is a set of rigorous quality standards and testing procedures implemented during the procurement of essential oil. The CPTG protocol is designed to ensure that doTERRA's essential oils are of the highest quality, purity, and potency.

As the certifying body of Phlebotomy, our mission is to represent and support Phlebotomy Technicians in their field of practice to ensure excellent standards of patient care are met and …

At dōTERRA®, every batch of its Certified Pure Tested Grade® (CPTG®) essential oils is 100% pure and natural, carefully sourced from qualified and reliable producers.

To ensure that each bottle of essential oil is pure and free from contaminants or synthetic fillers, doTERRA created the CPTG Certified Pure Tested Grade® protocol. The CPTG process includes a rigorous examination of every batch of oil, along with third-party testing for transparency.

doTERRA has created their own standard, and they call it CPTG – Certified Pure Therapeutic Grade. So this is a term unique to doTERRA and is, in fact, a registered trademark to them.

Every batch of dōTERRA® essential oils is subjected to strict requirements set forth in the CPTG Certified Pure Tested Grade® quality protocol. This protocol ensures potency, purity, and consistency batch to batch.

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