It is true that you cannot explain Underberg, you need to experience it. Once you do, you will never want to be without it !
Underberg Natural Herb Bitter (3-pack) reviews
Excellent drink, nothing like it. Unlike some other herbal alcoholic drinks, it's not sweet at all.I highly recommend it.
For starters, gentiana lutea is a nice blue flower, the extract(s) from which you'll find in Underberg, but nowhere else in the United States. The other ingredients, however, are not common knowledge since the formulation is protected by patent and is closely guarded. But, do not be dissuaded by the unknown. Do not be dissuaded, either, by it's bitter taste, for the intended effect of Underberg can be subtle. Underberg really is a really good digestive aid. Try it and my guess is that you'll wish Underberg were more widely and commonly available nearer to where you reside.