Professional Positions 3/2023 – present Associate professor, Department of Cosmetics, Mokwon University, Daejeon, Korea 3/2017 – 2/2023 Assistant professor, Department of Cosmetics Engineering, Mokwon University, Daejeon, Korea 3/2014 – 12/2014 Adjunct professor, Graduate School of Alternative Medicine, Kyonggi University, Seoul, Korea 3/2013 – 12/2013 Adjunct professor, Department of Beautycare, Dongnam Health University, Suwon, Korea 1/2014 – 2/2017 CTO, Ellead Co., Ltd., Skin & Research Center, Seongnam, Korea 3/2001 – 11/2013 Principal researcher, R&D Center of Skin Science and Cosmetics, Enprani Co., Ltd., Incheon, Korea 1/1996 – 3/2001 Senior researcher, Living Chemistry Center, Cheiljedang Corp., Incheon, Korea 9/1994 – 6/1995 Teaching assistantship, Department of Biology, Yonsei University, Seoul, Korea Education 9/2005 – 8/2009 Ph.D. in Biomaterials Science and Engineering, The Graduate School of Yonsei University, Seoul, Korea; (Mentor: Kang-Yell Choi, Ph.D.) 3/1994 – 2/1996 M.S. in Biology, Department of Biology, Yonsei University, Seoul, Korea (Mentor: JooHun Lee, Ph.D.) 3/1990 – 2/1994 B.S. in Biology, Department of Biology, Yonsei University, Seoul, Korea