Perkii Orange, Mango & Passionfruit Sparkling Probiotic Drink Is Bottled With 1 Billion Plant-Based Targeted Release Probiotics. Each Serve Is Naturally Flavoured, Only 39 Calories And Non-Fermented For A Better Taste! Perkii Targeted Release Probiotics: Did You Know Stomach Acids Can Be Harmful To Probiotics? At Perkii, Our Probiotics Are Micro-Shielded To Resist Stomach Acids. For A Targeted Release In Your Gut. Developed At The University Of Queensland.