Part 5: Oxygenated Compounds—Ketones


Ketones are very similar to aldehydes as they also feature an oxygen with a double bond; however, this functional group always occurs somewhere in the middle of a carbon chain rather than on the end. Ketones can be identified from their scientific name, which usually end with the suffix “-one.” Common ketones found in essential oils are carvone and menthone.

Main Health Effects:

  • Improves the appearance of skin1
  • Some have calming properties2
  • Supports healthy respiratory function3*
  • Promotes healthy digestion4*
Essential OilMain Ketone Constituent(s)Amount
Dill2,4*carvoneApproximately 50%
Peppermint 3*,4*menthoneApproximately 15%
Rosemary 2,3*,4*camphorApproximately 10%
Fennel 2,3*,4*frenchoneApproximately 5%
Lavender 1,2octanoneApproximately 5%




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