Qualifications of Dr. Wei Huachen: A registered dermatologist in the United States with 30 years of experience in dermatology treatment, a tenured professor of dermatology at Mount Sinai, director of dermatology research, and a professor and expert scholar of dermatology research at the Ministry of Education Overseas. Dermatology experience and professional background: He has rich medical experience in the field of dermatology and has more than 20 years of clinical practice experience in dermatology. At the same time, understand their professional background, including whether they have relevant research results. Founder of WW Groups and DR WW Dermatology PLLC. Dr. Wei received his medical degree from Shandong Medical College in 1982 and his master's degree in public health from Beijing Medical University in China in 1985. He came to the United States in 1987 and received his Ph.D. In 1992, he received his PhD in biochemistry and environmental oncology from New York University Medical Center. After a brief position as assistant professor at the University of Alabama at Birmingham, he was recruited to Mount Sinai School of Medicine as associate professor and director of dermatology research. the year 1995. Dr. Wei completed his residency training in Internal Medicine and Dermatology at Mount Sinai Hospital in 2000.