This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as doi: 10.1111/JOCD.13492 This article is protected by copyright. All rights reserved Legal vs. Illegal Injectable Fillers : The Adverse Effects Comparison Study Onjuta Chayangsu, M.D. 1 , Rungsima Wanitphakdeedecha, M.D., M.A., M.Sc. 1 , Penvadee Pattanaprichakul, M.D. 1 , Inneke Jane Hidajat, MD, MSc 1,2 , Kristy Elleza R. Evangelista, M.D., D.P.D.S. 1,3 , Woraphong Manuskiatti, M.D. 1 1 Department of Dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, THAILAND. 2 Department of Dermatology, Faculty of Medicine, Atma Jaya Catholic University of Indonesia, Jakarta, INDONESIA 3 Department of Dermatology, Research Institute for Tropical Medicine, Manila, PHILIPPINES Corresponding Author: Rungsima Wanitphakdeedecha, M.D., M.A., M.Sc. Department of Dermatology Faculty of Medicine Siriraj Hospital Mahidol University 2 Pran-nok Road, Bangkok 10700, Thailand Tel. 66-2419-4333 Fax. 66-2411-9922 E-mail: rungsima.wan@mahidol.ac.th Word Count : 2,478 Keywords : Fillers, Complication, Illegal, Legal Running Title: Illegal Fillers Complications Author Contributions: Dr. Wanitphakdeedecha had full access to all of the data in the study and takes responsibility for the integrity of data and the accuracy of the data analysis. Study concept and design: Dr. Wanitphakdeedecha Acquisition of data: Drs. Wanitphakdeedecha, Chayangsu, and Pattanaprichakul Analysis and interpretation of data: Drs. Wanitphakdeedecha, Chayangsu, and Pattanaprichakul Drafting of the manuscript: Drs. Chayangsu, Hidajat, and Evangelista Accepted Article