Jung Sung-jae
Jung Sung-jae is a South Korean entrepreneur and former dermatologist. He is the founder and former chief executive officer of Classys, a medical aesthetics device manufacturer, and a co-creator of Dr. Jart+. Forbes estimated his net worth at in 2025.
Early life and education
Jung Sung-jae was born in October 1967. He attended Hanyang University, where he earned a bachelor's and master's degree in medicine.Career
Medical career
In 2002, he began serving as the director of Soft Touch Dermatology Clinic.Classys
In 2007, while still working as a dermatologist, Jung founded Classys. The company began to develop medical devices, with a focus on skin care.In 2017, Classys went public on the KOSDAQ.
In 2022, Bain Capital Private Equity acquired a 60.84% stake in Classys for 670 billion Korean won. Jung and his family collectively sold their majority stake while retaining approximately 12.93% ownership in the company.