About Jan & Karls

We are Jan and Karl — two friends from the beautiful Moselle in Rhineland-Palatinate. As long-time athletes, we became familiar with nutrition and the possibilities of natural performance enhancement engaged in sports. Looking for a suitable addition to our training, the ambition packed, something of their own on the to put legs. Two years of intensive planning later, our first product, the Starke Shot, was born. Now we want to help other athletes take every training session to a new level! Read their story