Kratom strains, explained
Strain names combine a vein colour with a market name. They are how vendors sort products — the one lab study that compared strain-labelled products found no significant difference in their alkaloids (Huisman 2023).
21+ only. Kratom is not approved by the FDA for any medical use, and nothing here is medical advice.
Strain chart
Rows are market names, columns are vein colours. Every cell links to its page.