I'm actually planning and taking the essential oils internally
I have some thieves but I am not going to take it internally because it has eucalyptus and it would just not recommended in internally. Although I do know people who have used internally with no problems
I have taken 15 drops of eucalyptus essential oil internally as an experiment, and I am not dead. But that was pushing it and I only recommend 8-10 drops per dose for adults.