Green kratom leaves look nice because the veins and stem are almost the exact same color as the rest of the leaf, but that isn’t why people buy green vein kratom powder. The biggest reason people choose any given strain of kratom is that they’re interested in its alkaloids. More specifically, people are interested in the alkaloids mitragynine and 7-hydroxymitragynine. Understanding more about these two alkaloids will help you learn what to expect from kratom and why so many people are interested in this plant.