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For those seeking to explore what it means to identify as a man, and how to think about masculinity in the current age, Synthesis offers its Men’s Retreat.

Created by the founders of Synthesis, this intensive 5-day program includes two truffle ceremonies. Each is conducted according to both the latest psychedelic theories and philosophies as well as some of the world’s oldest shamanistic traditions.

The retreat also highlights group integration sessions as a way of strengthening emotional bonds.

Along with psychedelic medicines, facilitator Sven Kimenai also uses breathwork as a healing practice during the Synthesis Men’s Retreat. The Synthesis facilitators utilize all of the tools at their disposal to create a safe and relaxing environment in which to explore some of the deepest questions you may have. The Men’s Retreat opens mind and body to new ways of being a man.

Psilocybin Treatments Offered

  • Mushrooms

Important Information

  • Synthesis is not equipped to offer psychedelic therapy at this time.
  • Although based in Amsterdam, Synthesis retreat locations are outside of the city.
  • Synthesis Men’s Retreat is currently unable to provide retreats to individuals using anti-depressants.
  • The Synthesis Men’s Retreat is held at the Venwoude location.
  • Due to COVID-19 concerns and protocols, Synthesis is currently unable to provide retreats.


Synthesis Men’s Retreat promises a deep dive into “liminal realms” of exploration of what it means to identify as a man. The Men’s Retreat provides a safe and comfortable space in which to continue your journey through what being a man means.

A retreat begins with a preliminary call to Synthesis to discuss any medical concerns. Along with truffle experiences, each retreat also focuses on ways to improve mood, focus, and states of consciousness in one’s daily life.

  • $5,000 USD/participant
  • 5-day / 4-night Accommodations
  • Three meals daily
  • Preliminary discussions with facilitators
  • Two psilocybin mushroom ceremonies
  • Meditation, Bio-Hacking, integration sessions

Contact Information

Social Media Information

What You Need to Know About Magic Mushrooms

Magic mushrooms are psychedelic because they contain the psychedelic compounds psilocybin and psilocin. They are also a completely natural psychedelic. Psilocybin is a prodrug, meaning it is only psychoactive when consumed and processed in the body.

When taking mushrooms which contain psilocybin, the body will convert the psilocybin into psilocin, which is psychoactive. Both psilocybin and psilocin belong to a group of chemicals known as tryptamines. This grouping also includes compounds like DMT and 5-MeO-DMT.

Magic mushroom use is thousands of years old, but the idea largely entered public awareness with the publication of an article about magic mushrooms in Life magazine in 1957. Written by the then vice-president of J.P. Morgan R. Gordon Wasson, this article detailed a magic mushroom ceremony in Oaxaca, Mexico that Wasson took part in. In the decade that followed, more Westerners began experimenting with psilocybin mushrooms.

Today, promising new research trials have found that psilocybin can effectively treat a number of intransigent psychiatric conditions. It’s why psychedelics for depression and other mental health issues are becoming more popular these days.

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