Role of Biotin in the Regulation of Ovine and Caprine Hair Follicle Activity January 2000 in “ Europe PMC (PubMed Central) ” Tahmasbi Am We don't know much about this study yet. We're maintaining the world's largest resposity of hair loss research. You can help out the community by sending a PDF of this study here . Not sure how to get a study's PDF? You can email the authors of the study. View this study on europepmc.org →