yes, I have thieves oil and use it externally, but I have read that the eucalyptus is not good to use it internally. It can have a toxic effect on the nervous system. Since I already have neurological problems, I have decided to stay away from the eucalyptus internally and therefore cannot use the thieves internally because it does contain eucalyptus
I just looked at the ingredients in the purification bleend, several of which I am unfamiliar with. I will check them out and see if I feel comfortable using them internally