Abstract
Introduction
Mental health stigma and discrimination remain major barriers to mental health equity worldwide. Their consequences extend beyond individual suffering, undermining access to care, social participation, and inclusion across key systems. Despite decades of advocacy and evidence on effective strategies, implementation remains uneven.
The launch of the WHO Mosaic Toolkit to End Stigma and Discrimination in Mental Health in October 2024 marked a milestone in translating evidence into action. Drawing on findings from more than 200 systematic reviews and extensive stakeholder engagement, the Mosaic Toolkit provides a flexible framework to design, implement, and evaluate anti-stigma initiatives across diverse contexts (Gronholm et al., 2025; World Health Organization [WHO], 2024).
Aligned with recommendations from the Lancet Commission (Thornicroft et al., 2022), the Mosaic Toolkit seeks to bridge the gap between evidence and implementation, incorporating implementation science principles such as context-sensitive adaptation, stakeholder engagement, and evaluation (Nyblade et al., 2019; Proctor et al., 2009).
In this editorial, we examine the promise of the Mosaic Toolkit while critically exploring structural, cultural, and operational challenges shaping its global implementation.
The Continuing Urgency of Coordinated Anti-Stigma Action
Mental health stigma operates at multiple levels, including public attitudes, internalized stigma, and structural discrimination. These forms of stigma interact to worsen outcomes, delay help-seeking, and reduce treatment engagement. International evidence shows that people with mental health problems frequently encounter discrimination affecting employment, housing, and social inclusion (Gronholm et al., 2023; Lasalvia et al., 2013; Thornicroft et al., 2009; Van Bortel et al., 2024).
Recent developments—including the COVID-19 pandemic, economic uncertainty, and workforce shortages—have intensified pressures on mental health systems despite increasing awareness. However, awareness alone has not produced sustained change, and anti-stigma initiatives often remain short-term, underfunded, and insufficiently evaluated. The Mosaic Toolkit strengthens anti-stigma capacity by translating evidence-based principles into actionable guidance across contexts, while also placing greater expectations on systems and organizations to adopt collaborative and accountable approaches.
Core Principles: Evidence-Based Design with Demanding Implementation Requirements
At the heart of the Mosaic Toolkit are three core principles supported by empirical evidence: leadership or co-leadership by people with lived experience; structured social contact promoting meaningful interaction; and inclusive collaboration across sectors and stakeholders (Adu et al., 2022; WHO, 2023, 2024). These principles are implemented through a cyclical four-phase process: identifying goals, planning actions, learning through evaluation, and refining interventions based on emerging insights. This model reflects implementation science approaches emphasizing adaptation, feedback, and sustainability rather than one-off interventions (Aarons et al., 2011; Damschroder et al., 2009).
The Toolkit is designed as a flexible resource rather than a prescriptive protocol, enabling adaptation across cultural and institutional contexts and supporting action at different scales, from community initiatives to organizational programs. However, flexibility introduces complexity, particularly at system level, where implementation requires readiness, stakeholder engagement, monitoring, and sustained commitment. Large-scale implementation depends on meeting broader structural demands.
Translation Beyond Language: The Challenge of Cultural and Conceptual Adaptation
Since its publication, the Mosaic Toolkit has attracted considerable international interest, yet its linguistic dissemination remains more limited than its global ambition would suggest. Publicly accessible evidence indicates the English original together with Italian and Danish translations (WHO Regional Office for Europe, 2026), while references to additional versions appear less visible in official publication channels.
This imbalance is not merely a dissemination issue. As a practical framework for context-sensitive anti-stigma action, the absence of local-language versions may restrict engagement by service users, families, advocacy groups, and frontline practitioners. Translation should be understood not only as language conversion but as a prerequisite for participation requiring conceptual and cultural adaptation. This challenge reflects the nature of the Toolkit itself. Core elements—such as lived experience leadership, recovery-oriented language, and disclosure practices—may carry different meanings across settings, particularly where participatory leadership challenges established hierarchies.
Meaningful adaptation requires stakeholder engagement, alignment with local values, and revision of terminology and strategies, demanding time and sustained collaboration. Limited translation should therefore be interpreted not as lack of interest, but as evidence of the structural effort required to move from global guidance to locally owned implementation.
From Lived Experience to Co-leadership: Redistributing Expertise and Power
Perhaps the most transformative—and challenging—aspect of the Mosaic Toolkit is its emphasis on the central role of people with lived experience, promoting their involvement not only as contributors but as leaders or co-leaders of anti-stigma initiatives.
This principle reflects growing evidence that lived experience enhances credibility, relevance, and effectiveness of interventions (Høgh Egmose et al., 2023; Sartor, 2023; WHO, 2023), particularly through social contact approaches known to strengthen anti-stigma efforts (Damsté et al., 2024; Maunder & White, 2019; Thornicroft et al., 2022). However, implementing this principle requires shifts in professional cultures and institutional norms.
In many contexts, lived experience involvement remains symbolic rather than genuinely collaborative. Moving toward co-leadership requires recognizing lived experience as expertise, ensuring appropriate compensation, providing support, and creating safe environments for participation (WHO, 2023). It also involves addressing risks related to public disclosure, including stigma, burnout, and tokenism. Thus, the Mosaic Toolkit challenges systems not only to implement new interventions but to reconsider boundaries between professional and experiential knowledge.
Implementation Realities: Bridging the Gap Between Dissemination and Uptake
The availability of a comprehensive resource does not automatically translate into effective use. One of the key challenges facing the Mosaic Toolkit is the gap between dissemination and implementation.
Implementation research highlights persistent barriers including limited funding, workforce constraints, organizational resistance, and limited evaluation capacity (Nyblade et al., 2019; Proctor et al., 2009). Many anti-stigma initiatives fail to progress beyond pilot stages due to lack of sustained support, and when implemented, outcomes such as sustainability and scalability are often poorly documented.
The Mosaic Toolkit emphasizes evaluation and continuous learning. Measuring complex outcomes—such as structural stigma or behavioral change—may exceed the capacity of smaller organizations.
Without preparation, social contact initiatives may become isolated events, and partnerships may remain symbolic if power dynamics are not addressed. These risks highlight the need to view implementation not as a technical step, but as a social and organizational transformation.
Cultural and Systemic Resistance: Negotiating Local Realities
Cultural context plays a decisive role in shaping stigma and the feasibility of anti-stigma interventions. In some settings, stigma is linked to moral or spiritual beliefs, requiring culturally sensitive messaging and community engagement. In others, institutional cultures may resist participatory approaches that challenge established authority structures (Kallakuri et al., 2021). Cultural beliefs and norms are key determinants of stigma expression and response to interventions (Hood et al., 2023).
Economic constraints also shape implementation capacity. Mental health services in many countries operate under chronic underfunding, limiting investment in long-term strategies, while short-term funding often prioritizes visible campaigns over structural change (Thornicroft et al., 2022).
These realities require realistic planning and incremental progress. In response to contextual complexity, the Toolkit encourages partnerships with local stakeholders, achievable goals, and learning from early experiences.
The Promise and Responsibility of Global Knowledge Exchange
Despite these challenges, the Mosaic Toolkit represents a major opportunity to strengthen global collaboration in stigma reduction. Its modular structure encourages sharing of experiences across countries, enabling learning from diverse cultural contexts.
The Mosaic Toolkit should be viewed as a platform for structured stakeholder dialog. Its emphasis on co-production, inclusive partnerships, and iterative learning creates opportunities for engagement across policy, service, research, and advocacy sectors. Such engagement is both a means to implementation and an outcome, as shared ownership is widely recognized as a determinant of sustainability in complex interventions (Proctor et al., 2009).
However, global exchange must be accompanied by methodological rigor. Reporting implementation processes and evaluating outcomes are essential for building an evidence base; without such documentation, valuable lessons risk remaining localized and inaccessible.
From Blueprint to Practice: Reframing Expectations
The Mosaic Toolkit should not be understood as a ready-made solution, but as a framework that requires negotiation, adaptation, and sustained commitment. Its greatest strength—flexibility—also represents its greatest challenge.
Rather than asking whether the Mosaic Toolkit can be replicated across settings, the more appropriate question is how it can be meaningfully adapted while preserving its core principles. This shift from replication to contextualization reflects broader developments in implementation science and global mental health.
Limited translation across languages illustrates this tension. It signals not failure, but the recognition that genuine adaptation involves conceptual translation, stakeholder engagement, dedicated resources, and institutional readiness. From this perspective, the Mosaic Toolkit is not only a technical resource, but a catalyst for systemic reflection.
Collective Call to Action
The global mental health community now faces a critical moment. The threat of stigma, discrimination, and related health inequities (WHO, 2025), together with the availability of an evidence-based framework, creates important opportunities to address stigma in coordinated and measurable ways. However, realizing this potential requires sustained investment, interdisciplinary collaboration, and openness to institutional change. Health inequities linked to stigma remain a recognized barrier to equitable care and participation.
We encourage researchers, policymakers, practitioners, and advocates to engage with the Mosaic Toolkit by piloting initiatives, evaluating outcomes, documenting lessons learned, and sharing experiences across contexts. Building a global evidence base depends not only on innovation but also on transparency and collective learning.
In the end, success will be measured not by downloads or translations, but by durable changes in attitudes, practices, and systems. Achieving sustained stigma reduction requires commitment and willingness to reshape existing structures. The Mosaic Toolkit provides the framework; its future impact will depend on how communities around the world interpret it, adapt it, and ultimately bring it to life.
