About Kratom Encyclopedia

Kratom Encyclopedia explains what kratom strain names mean, what peer-reviewed studies and government agencies report, and what the law says in every state. Every number is cited to the study, agency page or statute it comes from, with the date we checked it.

21+ only. Kratom is not approved by the FDA for any medical use, and nothing here is medical advice.

Who publishes it

Kratom Encyclopedia is published by Andrew Ehlert. His company is paid by Kratom Country and Super Speciosa for marketing work, and this site is part of that work. Those retailers appear only in labelled partner blocks below the science; they never change what a page says about the research or the law — see the partner policy.

How sources are chosen

Science comes from peer-reviewed studies and government agencies (NIDA, FDA, CDC), each quoted from the paper or page — see the research library. State law comes from the statute, rule or bill on the state's own site, checked at least every 60 days; LAPPA's 50-state survey is the starting point, never the only source for a change.

Measured vs reported

Lab and field measurements are shown separately from what people report in surveys, in visibly different blocks. Strain names are treated as market categories, because the only peer-reviewed lab comparison of strain-labelled products found no significant alkaloid differences. We don't make health claims in our own voice or write dosing content.

Corrections

Send a source and we'll re-check the page and date the correction. A state page whose recent change we haven't confirmed on the state's own site says so and stays out of search results.