Hey Kay is a full-cycle drink. It is an all-natural smart drink made to support how you live, move, and feel. Organic, sugar-free, and powered by plants, each blend is designed with a function in mind: to cleanse, fuel, or unwind your core being, so you can meet the day exactly where you are. It is an all-natural smart drink made to support how you live, move, and feel. Organic, sugar-free, and powered by plants, each blend is designed with a function in mind: to cleanse, fuel, or unwind your core being, so you can meet the day exactly where you are.