#Personalitytest

A new trend is sweeping across South Korea’s youth: personality tests based on the concepts of testosterone and estrogen, labelled as ‘teto’ and ‘egen’, are becoming the latest markers of identity and compatibility, especially among young singles. This hormone-inspired typology is rapidly nudging aside the long-dominant MBTI as the go-to tool for self-understanding, social interaction, and even dating decisions—a phenomenon already echoed by pop culture and social media, and increasingly stirring discussion among experts.

A rapid trend from Korea is reshaping how young people think about identity and compatibility. A 28-question test based on hormonal cues, known as the teto-egen typology, has become a popular shorthand in conversations, dating, and online communities—outpacing MBTI in everyday discussions. The wave has extended into pop culture, fueling debates among educators and researchers alike.

In teto-egen, people are categorized by energy type and interpersonal style. The system identifies four archetypes: teto men who are athletic and bold; egen men who are gentle and appearance-conscious; teto women who are expressive and outgoing; and egen women who are reserved and traditionally feminine. Many youths use these labels to gauge potential romantic compatibility from blind dates to discussions about celebrities. A major Southeast Asian study notes that millions have engaged with these archetypes on Korean personality platforms.