The Question Every Customer Should Ask

Before you buy any kratom product from any vendor, ask one question: "Can I see the Certificate of Analysis?"

If the answer is no — or "we test everything" without producing the actual document — keep moving. A COA is the only objective evidence that a product contains what the vendor claims it contains and is free from contaminants that could harm you.

What Most Vendors Don't Want You to Know

The kratom market has a transparency problem. A large percentage of vendors either:

  • Don't test at all — they buy bulk powder, repackage it, and sell it on trust
  • Test selectively — they run a potency test but skip the safety panels (heavy metals, solvents, microbial)
  • Use supplier-provided COAs — the company selling them the raw material also "verified" it, which is a clear conflict of interest
  • Test once and reuse — one COA from years ago applied to all current batches, regardless of whether they come from the same source
  • Display fake or altered COAs — yes, this happens, and it's more common than the industry wants to admit

When we say we publish every COA, we mean: every batch, tested by an independent ISO/IEC 17025-accredited lab, with results available for anyone to view before they buy.

What Our COAs Test For

Alkaloid Quantification

This is the core of what you're buying. Our COAs break down the exact milligram content of every detected alkaloid — 7-hydroxymitragynine, mitragynine, speciociliatine, corynoxine, and others. Not a range. Not an estimate. Exact quantities per unit, verified by HPLC analysis.

Heavy Metals (ICP-MS)

We test for arsenic, cadmium, lead, and mercury using inductively coupled plasma mass spectrometry. Our results are reported with exact measurements against established safety thresholds. Every batch has passed.

Residual Solvents (GC-MS)

Extraction processes can leave behind solvents — Class I (carcinogenic), Class II (moderate toxicity), and Class III (low risk). Gas chromatography-mass spectrometry verifies that no dangerous solvent residues remain in the finished product.

Elemental Impurities

Beyond the "big four" heavy metals, we test for additional elemental contaminants that could accumulate with regular use.

How to Verify a COA Is Legitimate

Not all COAs are created equal. Here's how to spot a real one:

  • Lab name and address — Google the lab. Verify they exist and are accredited.
  • Accreditation number — ISO/IEC 17025 accreditation can be verified through the accrediting body (PJLA, A2LA, etc.)
  • Sample ID and lot number — matches the product you're buying
  • Date received and date reported — recent, not years old
  • Authorized signature — a named individual, not a generic stamp
  • Specific results — actual numbers, not just "PASS"

Our tablets are tested by Cora Science, LLC (ISO/IEC 17025:2017, PJLA #116374) and our chewable and powder products by PharmLabs San Diego (ISO/IEC 17025:2017, Acc. #85368). Both are independently accredited, US-based laboratories with no financial relationship to our company.

View all of our current COAs at favordalkz.com/pages/lab-results.

Why We Do This When Most Don't

Publishing COAs costs us money. Testing costs $500-1,500 per batch. Maintaining the infrastructure to display them costs time. Some of the data — like the exact alkaloid breakdown showing precisely how much 7-OH is in each tablet — could theoretically be used by competitors.

We do it anyway because we believe the kratom industry will only survive long-term if it earns the trust of consumers, regulators, and the public. And trust is built on verifiable data, not marketing claims.

If every vendor published their COAs, the worst actors in the market would be exposed immediately. Products with inaccurate labels, contaminated batches, and misleading potency claims would be visible to anyone who bothered to look.

That's exactly why most vendors don't publish them. And it's exactly why you should demand it.

Disclaimer: This article is for informational purposes only and does not constitute medical or legal advice. Kratom products sold by Favor'd Alkz are not intended to diagnose, treat, cure, or prevent any disease. These statements have not been evaluated by the Food and Drug Administration.

Last updated: April 2026