Types and Effectiveness of Digital Interventions for Mental Health Literacy and Help-Seeking Intention in Adolescents: A Systematic Review

Background: Adolescent mental health problems are increasing globally, yet help-seeking remains low due to limited mental health literacy and persistent stigma. Objective: This systematic review synthesizes digital mental health literacy interventions and examines their effectiveness in improving help-seeking intentions, reducing stigma, and enhancing mental health literacy among adolescents. Methods: This systematic review followed the PRISMA 2020 guidelines. Studies published between 2021 and 2025 were identified through Scopus, PubMed, and ScienceDirect, appraised using the JBI tools, and synthesized using thematic and narrative analysis. Results: This systematic review followed the PRISMA 2020 guidelines. A search of Scopus, PubMed, and ScienceDirect (2021–2025) identified 2,135 records, of which 11 studies met the inclusion criteria and were synthesized using thematic and narrative analysis after quality appraisal with the JBI tools. Conclusions: Digital interventions effectively improve mental health literacy, reduce stigma, and enhance help-seeking intentions among adolescents, with interactive, theory-based, and culturally tailored approaches showing the greatest potential for implementation in Indonesia. Future research should incorporate longer follow-up periods, objective behavioral measures, and multilevel strategies involving families and schools to support the development of scalable digital mental health literacy programs for Indonesian youth.