The Advent of t-ZnO Tetrapod zinc oxide (t-ZnO) was developed in 2012 by the Keele University, which ranks 23rd in Germany and has a history of more than 350 years. Phi-Stone AG in close cooperation with the University of Kiel and in particular with the participation of Dr. Rainer, Chairman of Functional Nanomaterials, has set up the “Rainer Adelung” research and development team of 14 scientists and engineers, combining biomedical and material science. In 2022, KES Pharma and PhiStone AG began to jointly develop an acne serum and jointly launch it to the market in August 2024