doTerra's network of botaniial growers and distillers span the globe from Oman to Corsica, from Sri Lanka to France. Only the purest and most potent essential oils meet our strict standards of Certified Pure Therapeutic Grade. Accept nothing less from your wellness professional or for your family. doTerra has high quality essential oils that are naturally safe and have few, if any, undesirable side effects when used as directed. The are powerfully concentrated and should be used with care. Be sure to use only 100% pure therapeutic-grade essential oils and follow all label warning and instructions.