MGO 400+ Manuka Honey is certified to contain at least 400 mg/kg of methylglyoxal.Scientific evidence has confirmed methylglyoxal as one of the key compounds naturally occurring in New Zealand manuka honey. Every batch of MGO Manuka Honey is tested and certified for guaranteed quality and methylglyoxal content as indicated on the label. MGO Manuka Honey is sustainably sourced from beehives in remote and pristine areas of New Zealand, with full traceability from beekeeper to shelf.