Risk taking underlies many behavioral and health problems that contribute to the public health burden during the adolescent period. Recent advances in developmental neuroscience have identified key neurobiological underpinnings of adolescent risk taking, but there is little understanding of how these neural processes interact with key social processes. In this talk, I will present research unpacking the neural processes by which family and peers, the two most influential social relationships in adolescents’ lives, affect risk taking. A more nuanced understanding of how family and peers differentially modulate neurocognitive development and risk taking will help us to understand the situations that may hinder or promote successful decision-making, creating vulnerabilities or protection for risky behavior.