doTERRA’s CPTG Certified Pure Therapeutic Grade®* quality protocol employs five different analytical methods to ensure doTERRA’s essential oils are both pure (extracts contain only the volatile aromatic compounds of a plant), and potent (extracts have consistent chemical composition from batch to batch). The testing process include gas chromatography, mass spectrometry, FTIR Scan (Fourier Transform Infrared Spectroscopy), microbial testing, and organoleptic testing. The CPTG quality protocol requires the use of independent laboratories for standardization and testing.
*CPTG Certified Pure Therapeutic Grade is a registered trademark of dōTERRA Holdings, LLC representing internal standards of quality assessment and material control. The CPTG testing protocols require the use of independent laboratories for CPTG standardization and quality testing. The CPTG protocol is not administered by government or industry regulatory agencies and does not imply regulatory approval of dōTERRA products.