Kratom extract is a refined form of kratom made by extracting the alkaloids mitragynine and 7-hydroxymitragynine from kratom leaves or powder. The extraction process is simple: leaves or powder are boiled to create a solution, which is then strained to remove the solid particles. Next, the remaining solution is simmered down, which causes the water to evaporate. Once the solution is a paste, it dries, and then the resulting substance is ground down into a powder.
The difference between kratom extract and regular kratom powder is that kratom extract is a refined concentration of alkaloids and other active ingredients, so this will deliver the best concentrations of mitragynine and 7-hydroxymitragynine without needing a fist full of capsules!