New Roots Wild Oregano C93 has one of the highest carvacrol-to-volatile-oil content. Wild-crafted from sustainable sources in the Mediterranean, we use the Origanum minutiflorum species, considered the best quality worldwide. Adults: Put 5 drops under the tongue and gulp or mix with 15 ml of water or juice three to five times daily or as directed by your health-care practitioner. Take with food. If you are taking supplements containing iron, zinc, calcium, or copper, take this product a few hours before or after them. For occasional use only.