About Jung Sung-jae
Born 1967. Jung Sung-jae is a physician and businessperson.
Jung Sung-jae (; born October 1967) 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 (소프터치 피부과).
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. Jung and his family collectively sold their majority stake while retaining approximately 12.93% ownership in the company.
Personal life Jung is married to Lee Yeon-joo. They have two children.
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Important facts
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Contemporaries
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Frequently asked questions
Who is Jung Sung-jae?
South Korean entrepreneur (born 1967)
When was Jung Sung-jae born?
Jung Sung-jae was born in 1967.
What is Jung Sung-jae's occupation?
Jung Sung-jae is a physician and businessperson.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Jung Sung-jae. https://biography.guide/jung-sung-jae/
MLA: "Jung Sung-jae." Biography.guide, https://biography.guide/jung-sung-jae/.
Chicago: "Jung Sung-jae." Biography.guide. https://biography.guide/jung-sung-jae/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
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