Questions about our Mānuka Honey? Our FAQ page covers grading, sourcing, and how it compares to standard honey.
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What Is Mānuka Honey? · UMF vs MGO · What Is UMF Rating · Dosage & Best Practices · Storage
Mānuka Honey is one of the most counterfeited and misrepresented food products in the world. Global demand far exceeds the supply of genuine high-grade Mānuka — which means a significant proportion of what is sold under the Mānuka name is either low-grade, diluted, or not authentic Mānuka at all. This article explains how to tell the difference, what the grading systems mean, and why East Cape sourcing changes the picture entirely.
What Makes Mānuka Honey Different From Regular Honey
All honeys have some antibacterial activity — primarily from hydrogen peroxide produced enzymatically from glucose oxidase. This activity is present in most honeys and is relatively generic.
Mānuka Honey has a second, distinct antibacterial mechanism that is unique to it: methylglyoxal (MGO). MGO is present in the nectar of Leptospermum scoparium flowers at concentrations not found in other honey sources. Bees concentrate it further during honey production. Unlike hydrogen peroxide activity, MGO activity is stable — it is not degraded by heat, light, or enzymatic activity in the body. This stability is what gives Mānuka Honey its distinctive therapeutic durability.
The higher the MGO concentration, the stronger the antibacterial activity. This is the measurable basis for Mānuka Honey grading.
Understanding the Grading Systems
MGO (Methylglyoxal) Rating
MGO is the direct measure of the primary bioactive compound. An MGO rating of 514+ means the honey contains at least 514mg of methylglyoxal per kilogram. This is a straightforward, measurable number — the higher it is, the more bioactive activity the honey has.
UMF (Unique Mānuka Factor)
UMF is a grading system developed by the UMF Honey Association (UMFHA) in New Zealand. It measures three compounds: MGO, leptosperin (a Mānuka-specific marker that confirms authenticity), and DHA (dihydroxyacetone, the precursor to MGO). UMF is considered the more comprehensive grading system because it verifies authenticity (via leptosperin) in addition to potency (via MGO).
UMF and MGO correlate approximately as follows:
| UMF Rating | Approximate MGO Equivalent | Therapeutic Relevance |
|---|---|---|
| UMF 5+ | MGO 83+ | Minimal — general wellness use |
| UMF 10+ | MGO 263+ | Moderate — general antimicrobial activity |
| UMF 15+ | MGO 514+ | Strong — meaningful therapeutic activity |
| UMF 20+ | MGO 829+ | Very strong — clinical applications |
| UMF 25+ | MGO 1200+ | Exceptional — premium medicinal grade |
UMF 15+ is the threshold most practitioners and researchers consider meaningful for therapeutic use. The vast majority of Mānuka Honey sold globally is UMF 5 or below — sweet, branded, and sold at a premium without the bioactive potency to justify it.
The Counterfeiting Problem
The New Zealand Ministry for Primary Industries estimated that global Mānuka Honey sales volumes have historically exceeded New Zealand's total Mānuka Honey production by a factor of 5 or more. The arithmetic is clear: most of what is sold as Mānuka Honey cannot be genuine.
Adulteration takes several forms:
- Blending with non-Mānuka honeys — diluting genuine Mānuka with clover or other cheap honeys while maintaining the label
- Using Leptospermum species from Australia — some Australian Leptospermum species produce honey with some MGO content but significantly different leptosperin profiles — technically related but not equivalent to New Zealand Mānuka
- Adding synthetic MGO — direct adulteration of honey with laboratory-produced methylglyoxal to inflate the MGO reading without genuine Mānuka content
- Low-grade honey sold at high-grade prices — UMF 5 honey sold in premium packaging at UMF 20 prices
The UMF certification system — specifically the leptosperin test — was developed in part to counter this. Leptosperin is a compound produced only by Mānuka plants and cannot be synthetically added to honey at economically viable concentrations. UMF-certified honey with leptosperin verification is the strongest protection against adulteration currently available.
Why East Cape Mānuka Honey Is Different
Just as with Mānuka Oil, geography matters for Mānuka Honey. The East Cape produces honey with naturally higher MGO concentrations than most other New Zealand regions — for the same reasons that East Cape Mānuka Oil has higher β-triketone content.
The volcanic geology, high altitude, and environmental stress that drive exceptional secondary metabolite production in the plant affect the nectar composition as well. East Cape Mānuka nectar has higher DHA concentrations (DHA converts to MGO in the honey over time) than standard New Zealand Mānuka nectar — producing honey that naturally achieves higher MGO levels without artificial concentration.
Our Mānuka Honey is UMF 15+ (MGO 514+), East Cape sourced, and independently graded. UMF 15+ is where meaningful therapeutic activity begins. We chose this grade specifically — not the lowest commercially available Mānuka, not the highest (which carries a significant price premium for marginal practical benefit for most uses), but the minimum grade where the evidence supports therapeutic claims.
What Mānuka Honey Is Actually Good For
Wound Care — Strongest Evidence
Mānuka Honey has the strongest and most replicated clinical evidence base of any natural wound care ingredient. Multiple randomised controlled trials have demonstrated accelerated healing, reduced infection, and reduced inflammation compared to conventional wound dressings. This is the application where the therapeutic case is clearest. The mechanism: MGO provides sustained antibacterial activity in the wound environment; the honey's osmotic properties draw fluid from the wound and create a moist healing environment; its acidity maintains a wound pH that inhibits bacterial growth.
Medical-grade Mānuka Honey dressings (Medihoney, L-Mesitran) are licensed medical devices used in clinical settings. For home wound care use, high-grade Mānuka Honey (UMF 15+) applied to minor wounds, burns, and skin lesions provides genuine therapeutic value.
Oral Health
Mānuka Honey has documented activity against Streptococcus mutans and other oral pathogens associated with tooth decay and periodontal disease. It also inhibits Porphyromonas gingivalis — a key pathogen in gum disease. Applied to the gums or used as a component in oil pulling or mouth rinse routines, high-grade Mānuka Honey provides genuine antimicrobial oral health support.
Digestive Use
Mānuka Honey has been studied for use against Helicobacter pylori — the bacteria associated with peptic ulcers — and for general digestive support. The evidence is less definitive than for wound care, but consistent with bioactivity in the GI environment. One to two teaspoons of UMF 15+ Mānuka Honey taken on an empty stomach is the most commonly reported protocol.
Sore Throat and Upper Respiratory
The combination of antimicrobial activity, anti-inflammatory compounds, and soothing demulcent properties makes high-grade Mānuka Honey one of the most effective natural sore throat remedies. A Cochrane review found honey as effective as or superior to over-the-counter cough suppressants for acute cough in children. The mechanism for throat applications is a combination of direct antimicrobial activity and physical coating of inflamed mucosa.
Skin Application
In combination with grass-finished tallow and Mānuka Oil — as in our Mānuka Honey Tallow Balm — high-grade Mānuka Honey contributes antimicrobial and humectant activity to a skin formulation. As a standalone application, raw Mānuka Honey can be applied to acne, eczema-affected skin, minor wounds, and dry lips. Its stickiness makes it impractical as a daily face treatment on its own — which is why the tallow base is a better delivery vehicle for most skincare applications.
How to Buy Mānuka Honey — The Checklist
Five things to verify before purchasing:
- UMF 10+ minimum — for therapeutic use. UMF 5 or below is not worth the Mānuka premium for anything other than general sweetener use.
- UMF certification mark — the UMFHA certification on the label confirms independent grading, not just a producer's claim. Look for the trademark hologram on genuine UMF-certified products.
- Leptosperin tested — this is included in UMF grading and confirms authentic Mānuka origin. It is the most reliable anti-adulteration test available.
- New Zealand origin — confirmed on the label. Not Australian Leptospermum.
- East Cape if available — not always specified, but it is the highest-potency origin for both oil and honey from this plant.
Our Mānuka Honey meets all five criteria. View our full product range →
Mānuka Honey vs Mānuka Oil — Which Should You Use?
They address different things and are best used together rather than choosing one over the other.
| Mānuka Honey (UMF 15+) | Mānuka Oil (East Cape) | |
|---|---|---|
| Primary active | Methylglyoxal (MGO) | β-Triketones |
| Best for | Wound care, oral health, internal use, skin hydration | Nail fungus, acne, eczema, scalp, antimicrobial skin protection |
| Use internally? | Yes | No |
| Dilution required? | No | Yes (for most skin applications) |
| Combined use | Best together — in Mānuka Honey Tallow Balm or as complementary products in the same routine | |
The Bottom Line
Most Mānuka Honey on the market is low-grade, adulterated, or both. The grading system exists precisely because the market cannot police itself. UMF certification with leptosperin verification is the only reliable protection against buying honey that does not deliver what the label implies.
East Cape UMF 15+ is the minimum grade worth buying for therapeutic use — and the East Cape origin means you are getting the highest-potency Mānuka available from the region that produces the most bioactive material on Earth.
We no longer stock standalone Mānuka honey — but we love it so much it's the heart of our Mānuka Honey Tallow Balm. UMF 15+ certified, paper certificate on every batch.
Meet the Mānuka Honey Tallow Balm →