I wouldn’t do cinnamon oil of any kind internally. I could see it doing more harm than good. I think it would not only wipe out the good with the bad but also cause more gut irritation/inflammation than for what its worth. Its pure speculation when the lab results don’t show the effects that it can have on good flora as well. Not to mention the potential Gut irritation and inflammation that it could cause. People that have any kind of a sensitive gut will have trouble using the oil.