Frontline is a brand new, topped-up-to-the-brim sour that?s received our full Fresh-Fruit Smoothie treatment, with a kiss of marshmallow because why not. Starting with an oat-heavy base and a touch of wheat for a full body, we?ve double-soured it
our house lacto culture. Then, weve added a brain-melting amount of fresh pineapple juice, banana cream, and guava puree, along with kisses of pink and white marshmallows, and a hint of vanilla for good measure. The forbidden smoothie awaits.