Oreganol P73 is the original certified-wild, handpicked Mediterranean oregano product line. P73 always indicates that it is powerful and effective. P73 is your guarantee of purity and power. Always look for “P73” it is proof of product quality. – Always certified-wild and Non-GMO. – Oreganol P73 is the original steam-distilled, wild, handpicked – Mediterranean oregano oil that has been researched and tested by Georgetown University and other research facilities. – Oreganol P73 can be used topically and internally.