Understanding Fulvic Acid Testing: Why the HPTA Seal Matters
- John Kowalski
- Jul 2
- 3 min read
For those leading formulation, innovation, or product integrity—especially in nutraceuticals, supplements, or wellness—knowing what’s inside your raw materials isn’t a luxury. It’s essential.
That’s why Mineral Logic products now carry the HPTA Test Method Certified Seal—a mark issued by the Humic Products Trade Association, the leading industry body dedicated to advancing humic and fulvic substances' science, education, and regulatory standards.
The HPTA works with researchers, regulatory agencies, and producers to define testing standards that distinguish credible, bioavailable fulvic acid from inflated or unverified claims.
You’ll find the HPTA-certified seal on:
MLG-50 Fulvic Mineral Powder
MLG-50 Fulvic Mineral Liquid
MLG-A50 Alkaline Fulvic Liquid
MLG-K50 Black Alkaline Humic Fulvic Liquid
This seal isn’t just a visual. It’s a standard; an explicit, third-party confirmation that our fulvic acid content is tested using recognized, repeatable, and trustworthy methods.
Not All Fulvic Acid Tests Are Created Equal
If you’ve ever compared fulvic acid specs and noticed wildly different values, it’s probably not the material—it’s the method.
Some suppliers use unvalidated tests that inflate numbers, including ash or non-bioavailable content. Others rely on conservative, scientifically accepted protocols for regulatory confidence and formulation accuracy.
Understanding the difference is critical.
A Breakdown of Fulvic Testing Methods
The Humic Products Trade Association (HPTA) recognizes two validated testing methods. Here’s what you need to know about them – and the one to avoid:
1. IHSS / LAMAR / AOAC Method (HPTA-Certified)
Measures humic and fulvic substances on an ash-free basis
Produces conservative, accurate, and reproducible data
Preferred by academic institutions and regulatory agencies
2. ISO 19822:2018 Method (HPTA-Certified)
A standardized international method using specific chemical reagents.
The ISO method is a modified version of the LAMAR method, with adjustments to time and temperature to improve accuracy and minimize degradation.
3. V&B Method (Not HPTA-Certified)
Includes ash and inert content, leading to inflated fulvic acid values
Results are not reproducible or defensible in clinical or regulatory environments
Frequently used in misleading marketing materials
By choosing HPTA-certified products, you ensure you make accurate, side-by-side comparisons based on reliable data, not marketing fluff.
Why This Matters for Your Formulations
Every data point matters when you’re building something that needs to perform. The testing method behind your fulvic acid directly affects:
Efficacy Claims – Precise fulvic measurements support detox, antioxidant activity, and cellular energy claims.
Formulation Accuracy – Inflated specs can lead to underdosing and performance issues. Understated values can unnecessarily increase costs.
Regulatory Confidence – You need documented, repeatable test results for audits, claims substantiation, and compliance filings.
“If I can’t get documentation, it’s a nonstarter.” — Director of Product Innovation
What You Should Ask Every Supplier
When sourcing fulvic acid, lead with this question:
“How do you test your fulvic content – and why that method?”
If the answer isn’t clear, consistent, and backed by documentation, it’s time to reconsider.
Why Leading Formulators Choose Mineral Logic
With Mineral Logic, you don’t have to wonder what’s in your ingredients or how they are measured.
You get:
Transparent, HPTA-Certified COAs based on ISO or LAMAR testing
Repeatable data you can use to support claims, adjust dosing, and pass audits
With batch-to-batch consistency, you can build your formulations around
A rare, naturally sourced fulvic mineral complex with a clean traceability story
Choosing the right fulvic acid isn’t just about what’s on the label. It’s about what’s behind it.
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Disclaimer: Our fulvic products support overall health by supplying minerals, trace minerals, antioxidants, electrolytes, and other micronutrients. They are not intended to diagnose, treat, cure, or prevent any disease.
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