Where can I find Power bar in Mäder?

Power bar can also be found in these cities:

Altstätten Appenzell Arbon Au Diepoldsau Goldach Heiden Oberriet Rheineck Rorschach Sankt Margrethen St. Gallen Teufen Thal Widnau Wittenbach

You can also find this in Mäder:

Baked Goods Yeast Fresh Pumpernickel Breakfast Cereals Olives Drinks Dry Herbs Spaetzle Snacks Horseradish