Dr. Joonseok Cha is Research Director at The Garden of Naturalsolution. He completed his PhD studies in Molecular Microbiology at Seoul National University, and continued research at UT Southwestern Medical Center in Dallas, TX, USA. He has published dozens of papers in various journals and served as an editor for the Journal of Microbiology. His interests include Skin Longevity, Oxidative Stress, and Circadian Clock.