The goal of this contribution lies in the development of an innovative measurement approach for the investigation of magnetic field effects on biological structures. Satisfying explanations of the interactions between the magnetic field and biological systems are still lacking. Impedance spectroscopy is a well-established technique for concentration estimation in the field of cell culture growth rate. Here we present proof of the concept for impedance monitoring during cell cultivation with magnetic field exposure. Potential applications lie in the biomedicine and food industry.