Nobody around here has heard of this natural stuff that is supposed to be very good for helping improve the immune system. Apparently it goes under different names, but it is popular where you guys are and some European countries. It is called KALAWALLA, but has also been sold as Leucostat, Immunotrax, Bielavin and Difur. The premise of the product intrigued me, but nobody here has ever heard of the stuff to my knowledge. Thanks guys!
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