Kratom is illegal statewide in Connecticut. State agencies classify Mitragyna speciosa, its leaves and extracts, mitragynine, and 7-OH as Schedule I controlled substances.
Connecticut's statewide kratom prohibition
Connecticut's Department of Consumer Protection and Department of Mental Health and Addiction Services state that kratom and its derivatives are Schedule I controlled substances. This includes natural leaf, extracts, mitragynine, and 7-hydroxymitragynine.
Official sources
See the national legality guide for other states. This dated summary is not legal advice.