This study examines the relationship between social media use and identity formation among adolescents aged 14 to 21. A quantitative survey (n = 131) assessed social comparison, online identity, and the influence of social media feedback on self-esteem. Results show a significant correlation between social comparison and the importance of online identity. Adolescents who spend more time on social media report a stronger influence of online reactions on their self-esteem. While social media fosters identity exploration, it also encourages validation-seeking behavior. These findings underscore the need for mindful social media use among adolescents.