OregaWild EXTRA STRENGTH 30ML is the original, edible, mountain spice oil blend made from wild, handpicked oregano. The oregano grows on white, calcium/phosphorus-rich rock, which is why it is so powerful. OregaWild is a potent germicide. Researched at Georgetown University, this is the most potent wild oregano oil available, ideal for daily or regular use as drops orally or applied topically. The extra strength oil is three times more potent than the regular strength.