Yan Jun. According to Sohu. Com, Sister Yan Jun is the image ambassador of Hangzhou Yan Jun Health Management Co., Ltd. The mask she uses is her own brand, namely Yan Jun brand. Yan Jun is a comprehensive, popular and modern comprehensive chain beauty brand. Headquartered in Hangzhou, Yan Jun has five comprehensive departments: Micro-plastic Anti-aging Center, Plastic Surgery Center, Skin Surgery Center, Body Shaping Center and Private Nursing Center.