Tiktok Trends and the Manufacture of Youth Self-Image: Algorithmic Culture, Identity Performance, and Adolescent Well-Being

Abstract

TikTok has become an influential environment for adolescent socialization, identity exploration, cultural participation, and self-presentation. Rather than functioning simply as a channel through which pre-existing youth culture is expressed, the platform's recommendation architecture, imitation-oriented affordances, visual conventions, and quantified feedback mechanisms may participate in the production and reinforcement of cultural norms. This critical integrative review examines how TikTok-mediated trends intersect with adolescent identity, body image, belonging, gendered self-presentation, and psychological well-being. Drawing primarily on symbolic interactionism and supplementing it with functionalist and conflict perspectives, the article develops the concept of the algorithmically mediated generalized other to describe how platform-curated audiences, engagement metrics, creators, and recurrent content may become incorporated into adolescents' perceptions of social expectations. It further proposes the function mirror effect as a conceptual mechanism through which repeated encounters with digitally modified and idealized self-presentations may shift perceived appearance benchmarks and encourage comparison between the embodied self and algorithmically privileged representations. Current evidence indicates neither uniformly beneficial nor uniformly harmful effects. TikTok can facilitate creativity, social connection, cultural expression, identity exploration, and supportive communities, while appearance-focused content, upward social comparison, problematic use, gendered recommendation patterns, and some forms of algorithmic reinforcement may be associated with lower well-being, body dissatisfaction, reduced self-regulatory agency, and conformity pressure. Because much of the available evidence remains cross-sectional, qualitative, or observational, causal claims require caution. The article concludes that understanding adolescent TikTok use requires moving beyond screen time toward analysis of content, platform affordances, developmental susceptibility, user characteristics, and the reciprocal relationship between algorithmic curation and identity performance.