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What is the difference between UMF 15+ and 18+?

3 min read

According to the UMF Honey Association, the Unique Manuka Factor (UMF) is a trusted grading system that measures the potency, authenticity, and freshness of Manuka honey. The key difference between UMF 15+ and UMF 18+ lies in their concentration of beneficial compounds, directly impacting their antibacterial strength and ideal applications.

Quick Summary

This article explains the core differences between UMF 15+ and UMF 18+ Manuka honey by detailing their potency levels, antibacterial compound (MGO) concentrations, and targeted applications for health and wellness.

Key Points

  • Potency: UMF 18+ contains a higher concentration of beneficial compounds, particularly Methylglyoxal (MGO), making it more potent than UMF 15+.

  • MGO Levels: A UMF 15+ rating indicates at least 514 mg/kg of MGO, while UMF 18+ signifies a higher level of at least 696 mg/kg.

  • Ideal Uses: UMF 15+ is ideal for targeted immune support, digestive health, and minor skin issues, whereas UMF 18+ is better for more advanced therapeutic applications and intensive antibacterial needs.

  • Cost: Due to its rarity and higher potency, UMF 18+ is more expensive than UMF 15+.

  • Quality Assurance: Both ratings are regulated by the UMF Honey Association and are independently tested to ensure authenticity and quality.

  • Application: UMF 15+ can be used for proactive health, while UMF 18+ is often reserved for treating more persistent or severe conditions.

In This Article

Understanding the Unique Manuka Factor (UMF)

The Unique Manuka Factor (UMF) is the gold-standard rating system for authentic Manuka honey from New Zealand, ensuring consumers receive a product of verified quality. The rating is not a single measure, but a comprehensive assessment of four key chemical markers that guarantee the honey's authenticity, potency, shelf-life, and freshness.

The most important marker in the UMF rating is Methylglyoxal (MGO), a potent antibacterial compound found in Manuka nectar. The UMF number directly correlates with the concentration of MGO and other signature compounds, such as Leptosperin and Dihydroxyacetone (DHA). Simply put, a higher UMF number indicates a higher concentration of beneficial compounds and stronger antibacterial activity.

The Specifics of UMF 15+ Manuka Honey

Manuka honey with a UMF 15+ rating is considered a high-grade, potent option with significant antibacterial properties. It contains a higher concentration of MGO—approximately 514+ mg/kg—compared to lower grades like UMF 10+. This makes it suitable for a range of targeted therapeutic uses. UMF 15+ is a popular choice for individuals seeking to address specific health concerns rather than just general wellness.

Common applications for UMF 15+ include:

  • Immune System Support: Providing a stronger boost during cold and flu season.
  • Digestive Health: Soothing discomfort in the gastrointestinal tract.
  • Skincare: Using as a mask for inflammatory skin conditions like acne or eczema.
  • Topical Wound Care: Assisting with the healing of minor cuts, burns, and abrasions.

The Power of UMF 18+ Manuka Honey

UMF 18+ represents a very high-grade and exceptionally potent Manuka honey, surpassing the strength of UMF 15+. Its MGO levels are significantly higher, at approximately 696+ mg/kg. Due to its concentrated antibacterial strength, UMF 18+ is considered more specialized and is often used for targeted, intense wellness applications.

This higher potency comes with a higher price point, reflecting its rarity and stronger therapeutic potential. While lower grades offer daily support, UMF 18+ is reserved for situations where maximum antibacterial power is desired.

Ideal uses for UMF 18+ include:

  • Intense Therapeutic Use: Recommended for more persistent issues or infections under medical supervision.
  • First Aid Kits: Serving as a potent topical application for more serious wounds.
  • Enhanced Wellness Rituals: For individuals committed to a high-potency health regimen.

Comparison Table: UMF 15+ vs. UMF 18+

Feature UMF 15+ UMF 18+
Potency High Very High
MGO Content (Approx.) 514+ mg/kg 696+ mg/kg
Best For Targeted immune support, everyday skincare, digestive issues Advanced therapeutic applications, intense antibacterial needs, severe skin issues
Price Point Premium Ultra Premium
Recommended Use Proactive health support and specific daily concerns Maximum antibacterial properties for persistent issues

Choosing the Right UMF Rating for Your Needs

Selecting between UMF 15+ and 18+ depends entirely on your intended use and budget. For consumers who need a potent Manuka honey for general immune support, gut health, or managing mild skin concerns, UMF 15+ offers excellent value. It provides significant antibacterial activity at a more accessible price point than the rarer, higher grades.

However, for those dealing with more persistent infections, serious topical applications, or simply seeking the highest level of potency available, UMF 18+ is the superior choice. Its elevated concentration of MGO and other unique compounds makes it exceptionally powerful, justifying the higher cost. It is a strategic purchase for individuals who require maximum therapeutic benefits.

Ultimately, both UMF 15+ and 18+ are certified, authentic Manuka honeys that have undergone rigorous testing to ensure purity and quality, as verified by the Unique Manuka Factor Honey Association (UMFHA). The decision rests on whether your health goals align with a high-potency grade or an ultra-premium one. Always verify the UMF trademark and license number on the product packaging to ensure you are buying a genuine product.

Conclusion

In conclusion, the primary difference between UMF 15+ and 18+ is a matter of potency, driven by higher concentrations of the antibacterial compound, Methylglyoxal (MGO). While both are high-quality, authentic Manuka honeys, UMF 18+ offers a more intense therapeutic effect, making it more expensive and suitable for advanced health needs. UMF 15+ provides strong benefits for more common ailments at a slightly lower cost. Your choice should be guided by your specific wellness objectives and budget, ensuring you select the right level of antibacterial support for your personal needs. For more details on the certification process and the science behind UMF ratings, visit the official UMF Honey Association website.

Frequently Asked Questions

The main difference is their potency level. UMF 18+ has a higher concentration of beneficial compounds, most notably Methylglyoxal (MGO), giving it stronger antibacterial and therapeutic properties than UMF 15+.

While both offer immune support, UMF 18+ provides a more powerful boost due to its higher potency. For more targeted and intense support, UMF 18+ is the better option. For general wellness, UMF 15+ is highly effective.

For those with more specific health concerns requiring maximum antibacterial activity, the extra cost of UMF 18+ is justified by its superior potency. For general, everyday use, the benefits of UMF 15+ are often sufficient and more cost-effective.

Yes, UMF 15+ has strong antibacterial and anti-inflammatory properties that make it suitable for skincare applications like managing acne or eczema, and for treating minor cuts and wounds.

To verify authenticity, look for the official UMF trademark and license number on the label. All genuine UMF-rated honey must be certified by the Unique Manuka Factor Honey Association (UMFHA) and packed in New Zealand.

MGO (Methylglyoxal) is a naturally occurring compound that is the primary source of Manuka honey's antibacterial properties. The UMF rating directly correlates with the concentration of MGO, meaning a higher UMF number indicates a higher level of MGO.

Both UMF 15+ and 18+ can aid digestive health due to their antibacterial properties. For general support, UMF 15+ is a great choice, while UMF 18+ is recommended for more intense or persistent issues.

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.