This premium Comvita Manuka Honey has a Unique Manuka Factor (UMF™) of 20+ and an MGO level of 829+. MGO is used to measure Manuka honey’s special properties and the minimum level for monofloral Manuka (Manuka honey sourced from one plant) is 80, meaning our Manuka Honey UMF™ 20+ is significantly above this. Every batch of Comvita Manuka honey is UMF™ certified, with Triple Test Guarantee, so you can be sure that this honey’s MGO level will last for its entire shelf life and that it only contains natural MGO from the Manuka bush, which is native to New Zealand.