South Korean dentist Lee Su-Jin has become an Instagram sensation recently because of her eerily ageless appearance. At 48, she looks like she could be a 20-something fresh out of dental school.

Lee first appeared in the public eye when she appeared on the TV show Same Bed, Different Dreams—a kind of South Korean Maury where parents and children try to hash out their differences. Her daughter brought her on the show because she claimed Dr. Lee was addicted to Instagramming her selfies. But once the segment aired, the Korean people immediately became even more addicted to her selfies than she is. Now she has more than 89,000 followers, and she's gaining more all the time, from all over the world.