The emergence of social commerce has revolutionized how consumers engage in purchasing experiences over social media platforms due to its novel technical features and interaction possibilities in online communities or forums. This research aims to assess how social commerce constructs, social influence, and trust, as a main driver, influence usage intention. Two conceptual frameworks were selected and combined to emphasize the structures, social support (informational and emotional), and perceived value (hedonic and utilitarian), resulting in a final strong relationship between trust and usage intention. Based on a sample of 299 social commerce users, the proposed research model was tested using the PLS-SEM methodology. The study’s findings demonstrated that almost all hypotheses were confirmed, which fulfilled our research gap and postulated that social commerce constructs and social influence have a positive effect on usage intention, mediated by trust. However, one relationship was not confirmed, regarding the effect of the utilitarian value on usage intention.