Get a FREE Happy Hippo Kratom Sample. Kratom is a Plant (Mitragyna Speciosa) that provides a wide range of Effects and Benefits. This Kratom sample pack will provide you with 5 different strains of Kratom powder. Each sample pack offers an assortment of different types of Kratom, including White Vein, Green Vein, Red Vein, and/or Yellow Vein varieties from different regions of Southeast Asia. In order to get this freebie, you need to click on the “Get FREE” button and enter your phone number in the box that appears on that page, then confirm by text message and fill out the form.