Happy Hippo Kratom is tested for Salmonella, E.coli, and Heavy Metals. When you buy any Happy Hippo product you know you are getting a trustworthy brand! Happy Hippo Is part of the American Kratom Association and also follows GMP protocol which ensures good manufacturing practices and the quality of the product. Happy Hippo offers various strains and sizes of their Happy Hippo kratom capsules. Try a sampler or larger size from 4oz to 8oz bags.