Manuka Health Manuka Honey 100+ is 100% pure Manuka Honey, collected from a plant that is unique to New Zealand – Leptospermum scoparium. The white flowers appear in spring and are much loved by the honey bees. Manuka flowers have a strong, aromatic fragrance and are highly valued for their rare and complex properties. It is the nectar of the New Zealand Manuka flower which contributes unique natural compounds that make Manuka honey so different to other honeys. Manuka honey is rare – it is only made in New Zealand, and can only be made for a few weeks a year when the Manuka plant is in flower. Manuka Health Manuka Honey is also available in the following grades and sizes; MGO 30+ (250g, 500g, 1kg) MGO 100+ (5g, 250g, 500g, 1kg) MGO 250+ (250g, 500g) MGO 400+ (250g, 500g) MGO 550+ (250g, 500g) Methylglyoxal - the unique compound in Manuka Honey MGO Manuka Honey is labelled based on the minimum Methylglyoxal content (mg/kg) it contains. Methylglyoxal is the compound directly responsible for the remarkable properties of Manuka honey and the MGO rating clearly indicates the minimum level of this compound in each jar. No other system of measurement gives such a clear and simple indication. The higher the MGO rating the more Methylglyoxal content. Quality Assurance All of Manuka Health's MGO Manuka Honey products are scientifically tested and verified to ensure you are getting consistent quality. Every batch is subjected to laboratory tests that measure various quality parameters including Dietary Methylglyoxal content. Great care is taken to ensure that the Methylglyoxal is maintained from the bee-hive to the finished product so you do not lose any of the valuable properties of this remarkable honey.