In an unregulated industry, third-party laboratory testing is the gold standard for kratom quality assurance. Understanding what lab tests measure—and how to read a Certificate of Analysis—empowers you to make informed decisions.
Why Lab Testing Is Essential
Without proper testing, kratom may contain:
- Heavy metals from contaminated soil
- Harmful bacteria like Salmonella or E. coli
- Mold and yeast from humid storage
- Pesticide residues
- Adulterants or synthetic substances
“Lab testing isn’t just about quality—it’s about safety. Every batch should be tested before reaching consumers.”
What Is a COA?
A Certificate of Analysis is an official document from an accredited laboratory detailing test results for a specific batch.
| Component | What It Shows | Why It Matters |
|---|---|---|
| Lab Info | Name, accreditations | Confirms qualified facility |
| Sample ID | Batch identifier | Should match your product |
| Test Date | When tested | Should be recent |
| Results | Measured values | What was found |
| Pass/Fail | Met specifications? | Quick safety check |
Types of Tests
Heavy Metals
| Metal | Concern | Limit |
|---|---|---|
| Lead | Neurological damage | <0.5 ppm |
| Mercury | Nervous system | <0.1 ppm |
| Arsenic | Carcinogenic | <1.5 ppm |
| Cadmium | Kidney damage | <0.3 ppm |
Microbial
- Salmonella: Must be absent
- E. coli: Must be absent
- Yeast & Mold: Below thresholds
Alkaloid Content
- Mitragynine: Primary alkaloid (1-2%)
- 7-Hydroxymitragynine: Secondary alkaloid
Red Flags
- No COAs available
- In-house testing only
- Outdated results
- Generic (not batch-specific) COAs
- Selective testing
Third-Party vs. In-House
| Aspect | Third-Party | In-House |
|---|---|---|
| Objectivity | Independent | Conflict of interest |
| Accreditation | ISO certified | May lack |
| Credibility | Gold standard | Lower trust |
View Our Results: See our complete lab testing for every product.


