Kratom Zone brings you Kratom in different forms, for your convenience. Kratom (Mitragyna speciosa) is a large tropical tree in the same family as the coffee tree, and is indigenous to some Southeast Asian countries. Kratom is unique in that it induces distinct effects depending upon the dosage level. At lower dosage, a stimulating effect is felt, with sexual energy frequently increased. At higher dosage, Kratom can produce extremely pleasurable, euphoric effects that are often accompanied by closed-eyed sensations. The effects last approx. 4-6 hours, but lingering effects may last longer.