Yes. Hulda Clark 's protocol is where I originally got the idea. One of the reasons I wanted to try essential oils is that a lot of the pub med studies uses extracts in their preliminary studies of ethnobotanical remedies against parasites as that is a way to reduce the "quantity" of stuff you need to take. Many times the potent ingredient is there in the essential oil. When you have a large infection or multiple infections, taking less bulk is advantageous.