Prokey Drinks is a soft drink made with 8 probiotic species of water kefir, improving digestion and intestinal flora. In ProKey Drinks, S.L. they have created ProKey drink during 2015. ProKey is not anymore than the traditional water kefir into an industrial scale maintaining its properties and flavour. They offer it to consumers as a healthy alternative to traditional soft drinks and sodas. As explained in elaboration, it contains microorganisms with numerous beneficial effects for their health, improves intestinal flora, strengthens the immune system, lowers cholesterol, etc.

The company was born from the idea of producing water kefir on large-scale. They are located in Tarragona, where they have developed prokey, their line of soft drinks and where they produce for domestic market.