Manuka Honey MGO 515+/15+ UMFFlora Mnuka Honey is produced by a sustainable, eco friendly, 100% Mori owned honey operation in New Zealand. The honey is sourced from several North Island locations and is licensed and certified under the UMF grading system as well as tested and rated for its MGO (methylglyoxal) content. Additionally, every jar is 100% traceable, all the way back to the source. Just scan the code on the label to learn where your honey was made, its lab test results,