Concentrated suspensions made of delaminated kaolin clay in water were prepared using two approaches, namely steady stirring and dynamic perturbation operating modes. In the first approach, the impeller was rotated at constant speed in one direction. For the second approach, the flow into the tank was dynamically perturbed by rotating the impeller cyclically in both directions. Two high-shear impellers were used: a Sevin impeller and a Cowles turbine. During the mixing, the evolution of torque was measured and samples were taken at regular intervals. All the results were compared in terms of the mixing energy consumption, particle average size and distribution, as well as the shear rheology. Suspensions prepared with the dynamic perturbation approach were found to require less energy and exhibited, in general, smaller particles and lower viscosity than with conventional mixing, which indicates that the proposed method could be an efficient alternative to conventional mixing.