The fast enlargement of social commerce has fundamentally reorganized the decision-making processes of young consumers by blending social interaction, content creation, and online purchasing into a unified digital environment. This study shows how social commerce influences young consumer decision-making, with particular highlighting on social media platforms, peer networks, influencers, user-generated content, and interactive marketing tools. The research aims to identify the key psychological, social, and technological factors such as trust, social proof, perceived authenticity, personalization, and engagement that shape purchase intentions and brand preferences among youth. Foresting a mixed-method research design, the study will collect primary data through structured questionnaires and semi-structured interviews from consumers aged 18–50. Secondary data from academic literature, industry reports, and platform analytics will support the analysis. Quantitative techniques including factor analysis and multiple regression will be applied to determine the relative influence of various social commerce elements on consumer decisions, while qualitative insights will deepen understanding of attitudes and motivations. The study will also compare decision-making behaviors across major social media platforms, and emerging in-app shopping features. The research will offer an actionable insight for marketers in developing effective youth-focused social commerce strategies, influencer collaborations, and engagement-driven campaigns. This research contributes to contemporary marketing literature by clarifying evolving consumer behavior in socially driven digital marketplaces.