The Synthesis Institute

About

The Synthesis Institute is a psilocybin retreat and practitioner training organization based in the Netherlands, originally founded in 2018 and reconstituted under new leadership in 2023 after acquisition by The Resurgence Training Institute. Led by CEO Cameron Wenaus, the institute operates legal psilocybin truffle retreats from its New Eden retreat center in Hemrik, approximately ninety minutes from Amsterdam. The flagship Immersion program is a seven-week experience encompassing three group preparation sessions, a three-to-five-day retreat with medium-to-high-dose psilocybin truffle ceremonies, and three post-retreat integration sessions incorporating somatic and social integration tools. Having guided more than eleven hundred participants since its founding, the institute brings substantial clinical experience to its trauma-informed facilitation model. The organization's interdisciplinary framework examines human experience through four lenses — embodied, sacred, cognitive, and relational — reflecting an integrative philosophical orientation that draws on psychology, contemplative traditions, and psychedelic science. Beyond retreats, the Synthesis Institute offers a thirteen-month core practitioner training program, an MA/PhD pathway in interdisciplinary psychedelic care, and a Colorado-specific facilitator training program, positioning it as both a direct service provider and a training institution shaping the next generation of psychedelic practitioners.

Depth Orientation

The Synthesis Institute structures its retreats around an interdisciplinary framework that examines human experience through four lenses — embodied, sacred, cognitive, and relational — integrating modern psychedelic science with wisdom traditions and deep self-exploration. The seven-week Immersion program embeds the psilocybin ceremony within three weeks of preparation and three weeks of integration, treating the psychedelic experience as a developmental event requiring sustained psychological scaffolding. Facilitators are trauma-informed and trained to hold space for the full range of psychedelic experience rather than directing outcomes.

Treatment Modalities

Program Details

Best for

• Depression
• Anxiety
• Personal growth
• Spiritual exploration
• Professional development in psychedelic therapy
• Existential concerns

Notable Clinicians

• Cameron Wenaus — CEO, MBA from Dalhousie University, BA in Psychology from UBC, co-founder of Retreat Guru
• Maya Albert — Director of Operations, co-founder of Psyched conference
• Meghan Kennedy, LCSW — Faculty, certified in psychedelic-assisted therapies
• Dr. Allen Goodwin — Faculty, psychology lecturer and shamanic practitioner

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