Where can I find Power bar in Nassau?

Power bar can also be found in these cities:

Aarbergen Altendiez Boppard Diez Hadamar Hundsdorf Koblenz Lahnstein Limburg an der Lahn Montabaur Mudershausen Neuwied Waldesch Wallmerod (Westerwald) Winden (Rhein-Lahn-Kreis) Wirges

You can also find this in Nassau:

Energy Drinks Espresso Beans Food Flips Food Supplements Delicatessen Sauces Raisin Slices Tequila Tea Toast Bun