Socialization of children takes place in interaction with family members and peers. The period of adolescence is a process of maturation and growing up, characterized primarily by intense contact with peers Peers become second family to adolescents. In this period, young people are particularly sensitive and vulnerable to the influence of their peers and are particularly keen to feel accepted by the peer group. The aim of this study is to examine the susceptibility to peer pressure with respect to the level of parental control and the assessment of subjective well-being in adolescents. The study was conducted on 107 high school students in Zagreb. According to the study, there is a statistically significant association between peer pressure and parental control, where adolescents with lower frequency of parental supervision have a greater degree of susceptibility to peer pressure, and there is no statistically significant association between peer pressure and subjective well-being. The work begins with an introduction to adolescence, followed by a description of peer groups and peer pressure, parental supervision and subjective well-being. In addition to the research, the paper provides an overview of previous work and research dealing with peer relationships in adolescence.