http://www.mydoterra.com/catherineconger
CPTG Certified Pure Therapeutic Grade® — An Innovative Standard
dÅTERRA CPTG Certified Pure Therapeutic Grade essential oils represent the safest and most beneficial oils available in the world today. For an oil to be CPTG Certified Pure Therapeutic Grade the oil must be:
Pure and natural, with aromatic compounds carefully extracted from plants
Free from fillers or artificial ingredients; no dilution of active qualities
Free of contaminants, pesticides, or chemical residues
Rigorously tested for standards of chemical composition
Cross tested using mass spectrometry and gas chromatography to ensure exact purity and composition potency
Sourced by a global network of leading essential oil chemists and growers to ensure correct species, growth in ideal environments, and that raw plant materials were carefully harvested at the right time