100% pure UMF 10+ Manuka Honey UMF certified Perfect to take on the go or travelling Comvita Pure Manuka Honey Lonzenges provide the properties of 100% Pure UMF 10+ Manuka Honey from New Zealand. New Zealand Manuka Honey has long been valued for its contribution to a healthy diet. Only some Manuka Honey has the special UMF (Unique Manuka Factor) grade. This lozenge is guaranteed to be at least UMF 10+ and has been verified by an independent testing laboratory.