Royal Tropics - The Original Green Papaya Digestive Aid - 150 Capsule. Royal Tropic The Original Green Papaya Digestive Aid maintains maximum digestive action naturally, and is 100% pure. From ancient Hawaii comes mature Green Papaya Powder rich in papain, protein, fiber and high in potassium, now in concentrated capsule form. Papaya (Carica papaya) is a fruit grown in tropical parts of the world such as Hawaii, the South Pacific, South America and many other places. The Green Papaya fruit are harvested at the optimal moment before fully ripened. The Papaya is known to have an abundance of two very important enzymes that break down proteins: Papain and chymopapain. These are proteolytic enzymes, which assist proper digestion in humans by breaking down proteins into simpler and more soluble forms. Royal Tropics takes great care to ensure that the consumer gets the best green papaya product possible for proper digestion.