Manuka Honey is sourced from the Manuka tree/bush (Leptospermum scoparium) native to New Zealand. Manuka Honey is known for its healing properties. Most types of honeys have components with antibacterial qualities (hydrogen peroxide.) Only Manuka Honey contains non-peroxide (NPA or UMF) antibacterial components like methylglyoxal (MG) that help make the UMF factors (Unique Manuka Factors.) Manuka honey is also heat tolerant, unlike most raw honeys, so your body temperature of 98.6 degrees does not affect the active properties of Manuka.