Rowse Manuka Honey is guaranteed 100% pure and authentic Manuka honey from New Zealand. All our Manuka Honey is tested twice for its authenticity; at source in New Zealand and again on arrival in the UK. Each jar must have a substantial amount of methyglyoxal, or MGO. MGO is the active component in manuka honey which dictates the level of Non-peroxide Activity (NPA) within each jar and this is a unique property of manuka. Rowse Manuka Honey 100+ MGO has distinctively sweet, rich and herbal flavour, and a dark amber colour.