The lemon is just a drop or two - you can use sour if you wish. Raspberry might be replaced by some other high flavoured sourish berry I would think... blackberry perhaps or maybe cranberry... something that is not too sweet. You want to create a contrast.
With me the flavours i love in real life but can't stand in juice are cinnamon and blueberry anything. Go figure.
With me the flavours i love in real life but can't stand in juice are cinnamon and blueberry anything. Go figure.