1. R&DB Center, Beauty Science, Ltd., Sejong, Korea
2. R&D center, KJM Aloe Co., Ltd., Seoul, Korea
3. Department of Medical Biomaterials Engineering, College of Biomedical Science, Kangwon National University, Chuncheon, South Korea
4. Institute of Bioscience and Biotechnology, Kangwon National University, Chuncheon, South Korea