|More Alkaloids and Veins-|
Many factors cause alkaloid content to vary. For instance, younger plants tend to have a higher Mitragynine content, and the veins appear to be visibly more white. The veins shift to a more greenish appearance soon after. Older plants tend to have a higher 7-Hydroxymitragynine concentration and their veins appear to look more red. This is where the red vein, white vein, and green vein come from. They are all part of the same plant. The alkaloid concentrations, appearance, and effects are all part of the life cycle of the plant.