North American Herb & Spice was the first company on the American market to introduce edible Oil of Oregano. We are the oregano experts. This was the result of extensive research. To be edible, this essential oil must be made only from wild, mountain-grown, Mediterranean oregano, free of all chemicals and pesticides. It also has to be emulsified in A carrier oil such as extra virgin olive oil, which is used by North American Herb & Spice in its oil of oregano. The oregano we use is the real, 100% Mediterranean oregano, guaranteed to be handpicked in the pristine, untarnished wilderness. We even pay the villagers to limit picking to preserve and protect the plants. Our oil is produced by old-fashioned cold pressing and steam distillation. We use no chemicals to extract it. P73 is the designated formula indicator for Oreganol from North American Herb & Spice. When you see P73 on the label you know that this is the original researched and tested, wild mountain-grown oregano.This is the true wild oregano oil P73, a blend of edible species of wild oregano grown on natural mineral rich soils. This growing condition along with our dedication to a chemical and alcohol free extraction is the reason P73 Oreganol oil has a unique chemical profile, which is ideal for human consumption. This same oregano species can be grown elsewhere and not have the same effect of the P73, it is truly one of a kind. Oreganol P73 can be used either internally or topically. The Oreganol Travel Shipper provides 12 8ml bottles for the perfect size bottle to carry with you. Safe for everyday use.