For some reason Thyme EO excites parasites. Clove all forms excites parasites. The mixture of Thyme/Clove/Oregano causes less energy, which is essential for bone worms. In addition, the mixture prolongs suppression of bone (red) worms. So I kind of poo poo internal oil ingestion, unless it is in the mixture described in Reds Formula 31. EO oils ingested are to strong unless measured and diluted. To much fuss for such a critical ingredient.
We have used oregano caps 150mg 10:1 swanson in other formulas. It appears safe. Clove had disastrous results with exciting nanos, but when tempered with thyme and oregano at the same time, it appears to work. Reason unknown.
External thyme EO, and Rose constituents, Neem, Castor, etc are safe with measured amounts.