First, let’s describe what absinthe is: distilled beverage made with artemesia absinthium (wormwood), anise, and fennel. While there is no legal definition, most absinthes in the US contain the same ingredients and are similar to pre-ban absinthe in composition, style, and flavor. This is possible in part because modern analysis has demonstrated that the compounds blamed for absinthe’s alleged harmful effects were not present in pre-ban absinthe in the large amounts previously assumed. Modern absinthe made strictly according to pre-ban recipes has been analyzed and found to be more or less identical to actual pre-ban absinthe.
There are faux absinthe brands being sold as genuine, so buyer caution is advised; be well-informed!