This review shows the most recent empirical impact of social comparison research on Social Network Sites (SNSs) on psychological well-being. From a sociopsychological perspective, the effect of SNSs usage on individuals depends on multiple risk factors, including the social comparison process. Through twenty-two studies, the results show that individuals who frequently compare themselves with others are more sensitive to the negative impact of SNSs on body image, self-esteem, and psychological well-being. Limitations of these studies offer insights for future research to design prevention and health promotion interventions