Natural Products Laboratory, Institute Biology Leiden, Leiden University, Leiden, The Netherlands He holds a Pharmacists degree (1972) and a PhD (1976) from Leiden. He was lecturer at Leiden University 1976-1987, and since 1987 professor and head of the department of Pharmacognosy. Since 201 he is as Emeritus professor, still connected to Leiden University. He was guest professor in London (UK), Uppsala (Sweden), Amiens (France), Reims (France), Seoul (Korea) and Hilo (USA). From 1992-1998 he was Vice-Chairman and Chairman of the committee of the Phytochemical Society of Eu¬rope (PSE). Since May 2011 he is professor Emeritus at Leiden University. He is author/co-author of 780+ scientific papers, 4 books and 6 patent applications. September 2017 H factor 65 (Web of Science), 91 (Google Scholar) 67 (Scopus). Editor (1996-2002) and Editor-in-chief of Journal of Ethnopharmacology (IF 3.055)(2003-2016) and is editor-in-chief of Phytochemistry Reviews (IF 2.686) since 2001 and Executive Editor Biotechnology Letters (IF 1.639)since 2006. He supervised 66 PhD-theses, and 150+ MSc theses. He received an Honorary Doctorate University of Amiens, France (2004) and of the University of Uppsala, Sweden (2012). In 2007 he received the PSE Medal. He is a honorary professor at the Hong Kong Baptist University since 2015. In 2015 he was awarded the Gusi Peace Prize in Manila, The Philippines. September 2017 he was awarded the Egon Stahl Medal in Gold by the International Society of Medicinal Plants and Natural Products Research for his lifetime scientific work.