For humans, one drop of essential oil is roughly equivalent to 30 cups of tea. Because of this intense concentration, taking essential oils by mouth can overstimulate the phase I and II liver detoxification pathways and lead to liver damage. Ingest essential oils only under the direction of a trained physician. In France, a physician sends orders to a compounding pharmacy for internal (oral, rectal or vaginal) essential oil prescriptions. Usually physicians prescribe essential oils for a maximum of 14 days.
Kids & Babies
Only a handful of essential oils are safe for babies and young children in any form. Children and babies should never ingest essential oils.
Rose, lavender, Roman chamomile
Dosage: 1/6 adult dosage
18 months to 4 years:
The above plus mandarin, tangerine, tea tree, Eucalyptus radiata (not the more common Eucalyptus globulus, which is a stronger, more stimulating oil)
Dosage: 1/4 adult dosage
5 to 12 years old:
The above plus spearmint and citruses (e.g. grapefruit, orange)
Dosage: 1/2 adult dosage