Introducing Keystone Cultures Water Kefir, the key to a happy gut and a happy life. Their living beverage is a naturally fermented drink made with water kefir grains. Their Water Kefir is not only delicious, but it also supports digestion, immunity, and overall well-being. Made with organic ingredients and never pasteurized, their Water Kefir is a refreshing and nutritious choice for anyone looking to improve their gut health. Cheers to a healthier gut and a happier life with Keystone Cultures Water Kefir.