Where can I find Power bar in Ohmstal?

Power bar can also be found in these cities:

Balsthal Egerkingen Egolzwil Herzogenbuchsee Huttwil Langenthal Malters Menziken Murgenthal Oberkirch Oensingen Oftringen Reiden Reinach Rothrist Ruswil Schöftland Sempach Sursee Wolhusen Zell Zofingen

You can also find this in Ohmstal:

Everything From Milk Baking Mixtures Cream Stiffener Spreads Savory Food For Diabetics Menus With Meat Fruit Spritzers Filter Coffee Baguette Roll Salt Sticks