1. Institute of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3 and Arnimalle 22, 14195 Berlin, Germany
2. Clinical Research Center for Hair and Skin Science, Department of Dermatology and Allergy, Charité-Universitaetsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt Universität zu Berlin, and Berlin Institute of Health, 10117 Berlin, Germany