Abstract Knowledge of the factors that influence life satisfaction and well-being in adolescence is scarce. Sex and age were included as control variables. Mediation analyses indicated that all three psychological needs increase the effect of LS on adolescent PW. The results of this study suggest that feeling competent, more autonomous, and more connected to others are important need that may help explain the effect of LS on PW in the adolescent population. El apoyo social de los pares, definido como la percepción de una disposición instrumental o expresiva, real o percibida, de una red social en una relación íntima o comunitaria (Lin et ak, 2013), es otro factor que se ha asociado positivamente a la SV (Brannan et ak, 2013) y al BP (Ciarrochi et ak, 2017) en adolescentes.