Lab testing
What is a contaminant panel and why does it matter?
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Tests for things that should not be in the product: heavy metals (lead, arsenic, cadmium, mercury), microbes, and for extracts residual solvents. Lead is the documented concern for kratom; a 2020 Proposition 65 notice alleged lead in kratom powder (California AG notice 2020-03325).
What does a contaminant panel test?
Heavy metals (arsenic, cadmium, lead and mercury), a microbial panel (total counts, yeast and mold, E. coli, Salmonella), and for extracts residual solvents from the extraction process. Sellers that publish full programs list exactly those: one tests alkaloids, a full microbial panel and heavy metals (Super Speciosa lab lookup); another lists identity, arsenic, cadmium, lead, mercury and microbials (Kraken Kratom).
Why is lead the documented concern?
A December 2020 notice under California's Proposition 65 alleged lead exposure from kratom powder sold as teas and capsules (California AG notice 2020-03325). Several large sellers print a Proposition 65 lead warning on their sites for that reason. The alkaloids themselves are not on the Proposition 65 list.
Do the reports here have one?
No. The three reports linked from this store's lab-results pages are alkaloid potency panels only. The lab-results pages say so, and a lot-specific report with heavy metals and microbials is on the owner's supplier list before production orders ship. See the lab testing policy.
Does a potency panel say anything about contaminants?
Nothing. A method quantifies the analytes in its scope and is silent about everything else. The same is true the other way: a contaminant panel says nothing about alkaloid content. A complete report has both.
General information, not personalized guidance.
Sources
- California Attorney General Proposition 65 60-day notice 2020-03325 California Office of the Attorney General (accessed 2026-10-20)
- Super Speciosa lab lookup (panels as published) Super Speciosa (vendor page, documents what sellers publish) (accessed 2026-10-20)
- Kraken Kratom 100 chewable tablets (lab testing statement as published) Kraken Kratom (vendor page, documents what sellers publish) (accessed 2026-10-20)
Related questions
What is on a kratom lab report?
The laboratory's name and ISO/IEC 17025 accreditation, the client, a sample ID and dates, the serving mass, and an alkaloid table giving each analyte in percent, mg per gram, mg...
Why does the lab report show no lot number?
Because the brand submitted a sample, not a production lot. The three reports linked here carry a laboratory sample ID (SD260424-137 to -139), a client name and a date of...