My version of Polyjuice Potion takes form in a tasty smoothie, which includes a creamy base of thick Greek yogurt, whole milk, and banana as well as blueberries and spinach to give it a muddy potion-like appearance. Unlike the Polyjuice Potion in the books, which takes roughly a month to make, this Polyjuice Potion Smoothie takes 5-minutes or less to create and requires no hair or toenail clippings -- In fact, I strongly discourage adding those things!