The Wonderleaf Gin is an alcohol and sugar-free herbal and spice distillate, which is produced by the inventors of the Siegfried gin. With 18 botanicals, it serves as the basis for non-alcoholic mixed drinks, such as the Wonderleaf Tonic.

Raphael Vollmar and Gerald Koenen are not only the inventors of the world-wide highly awarded Siegfried gins, but sometimes also the real jokers. On April 1, 2016, they posted an April Fool joke on their Instagram page, introducing a non-alcoholic version of their gin. The feedback made them think - a nonalcoholic herbal and spice distillate, with the Schlüsselbotanicals lemon blossom and juniper, should be invented. Even if the production of the Wonderleaf is time-consuming and cumbersome, the product can be proud of! 18 herbs and spices are macerated and secretly distilled, but without a drop of alcohol is included in the result. Furthermore, the Wonderleaf is sugar-free and is made without the addition of artificial colors, flavorings or preservatives. It is bottled in the "Siggi" typical Apothecary bottle, which is provided with a stylish, beautiful label.