Kratom is a herb with a rich history of folk use in Southeast Asia. Its leaves contain potent alkaloids, significantly mitragynine and 7-hydroxymitragynine, which bind in the opioid receptors inside the human brain.
https://www.autoritedelaconcurrence.fr/sites/default/files/2026-01/best-local-kratom-vendors-in-phoenix-arizona-top-shops-and-reviews.pdf