Efficacy of 2.5mg oral biotin versus 5% topical minoxidil in increasing nail growth rate. October 2019 in “ UNESP Institutional Repository (São Paulo State University) ” Luiz Eduardo Fabricio de Melo [UNESP] Garbers 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 hdl.handle.net →