Thanks for the bean paste tip ;) I'm going to try that out for sure!!
Since you juice - a great exfoliant is pineapple pulp!! Juice some pineapple (drink the juice) and then take a small scoop of the pulp and rub it all over a slightly damp face for around 30 seconds to a minute. Then rinse off with cool water. Your skin will begin to glow after a few days of this, and feel so soft. The pineapple stings a little bit at first, but that's just the fruit acids (it means it's working). It'll go away within a minute or two. I bet you could juice some pineapple and cucumber together and take the pulp of each and use that on your face too for extra benefit.