It is tested using gas chromatography/mass spectrometry to ensure it's the purest and highest quality essential oil on the market. Features 100% pure orange essential oil. Gas chromatography/mass spectrometry (GC/MS) tested. Lifts spirit, brightens mood and refreshes air around you. Clarifying nature cheers the heart and brightens mood. Can be applied directly to skin or diffused. Store tightly closed in a cool, dry place. In the face of increasing adulteration and quality exaggeration in the marketplace, this is peace of mind for all Aura Cacia customers.