Ancient Wisdom for the Modern Mind

A Legal, Modern Mushroom Experience 

Apply Now

Ancient Wisdom for the Modern Mind

A Legal, Modern Mushroom Experience 

Ancient Wisdom for the Modern Mind

A Legal, Modern Mushroom Experience 

The Journey

For thousands of years, humans have used “magic” mushrooms to develop a deeper connection to self, community, and purpose. 

When used with intention in a safe space, this remarkable plant can make a profound impact. 

Our beautiful and peaceful location just outside of Amsterdam is the perfect setting for a comfortable, transformative mushroom experience.  

It is our mission to synthesize cutting-edge research with ancient practices to help people achieve true freedom. With professional guidance and facilitation, you will be able to integrate your mushroom journey at Synthesis towards a more fulfilling, joyful life. 

A new dawn awaits you at Synthesis.  

Apply to Join a Retreat

See How Synthesis Transforms Lives

“I feel that I made one of the best decisions of my life attending the Synthesis retreat. My life has improved on numerous fronts and I have adopted new practices (e.g., daily meditation and free-flow writing) to sustain my new outlook on life. And the relationships that I built with everyone else there are some of the strongest I have ever felt — an unexpected dividend of this experience.”

Jan, 27, USA Mobile Developer  

"I felt like I let out so much emotion and now I can take stress easier because I have more room for it. I also still feel the beautiful compassionate love that I experienced and spend more time thinking about how my interactions affect others. Before, I struggled to let go of alcohol and now it is effortless because I have no interest in it. I love that, because I feel healthier and much happier.”  

Mary, 50, USA Speech Pathologist

“Just wanted to commend and thank you all for an amazing retreat. The care and attention to each and every person and every detail was very thorough. [Synthesis] is probably the best facilitation and framework for this type of experience I’ve encountered.”  

Brandon, 38, USA Functional Medicine Practitioner

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The Synthesis Experience

Life-Changing Journey

In just a few days you’ll make strides in your personal development and spiritual growth that could have taken years otherwise.

Lasting Transformation

Our expert staff will facilitate the integration of your breakthroughs for long-term empowerment.  

Comfort & Care

At Synthesis you will feel somewhere between home and heaven with our beautiful lodgings, exquisite meal plan, and tranquil surroundings. 

Practical Techniques

Learn how to incorporate transformational practices into your life back home.

Lifelong Community

Upon completing your journey, you will become a lifetime member of the Synthesis ‘Inner Circle’ for continued support and inspiration. 


The Lighthouse, a modern retreat, about 30 minutes from Amsterdam.

Retreat Schedule

Day 1 Preparation 

After arriving at The Lighthouse, we will help you settle in and prepare for your journey. 

Our facilitators will sit down for 1-on-1 conversations with each individual to clarify your intentions during the retreat and calibrate your dose. 

Day 2 Ceremony 

On the second day of the retreat, you will participate in the ceremony, consuming the psilocybin truffles at either a low, moderate, or high dose. 

You will be fully prepared and comfortable in a setting perfectly optimized for your needs, allowing you to make the most of your psychedelic experience.

Day 3 Workshop 

On the final day, our team will guide you through micro-dosing and integration workshops.  

With a focus on ensuring you can make meaningful, lasting changes to your life, day three is about learning how to bring your newfound insights back home with you. 

Is Synthesis Right For You?

Synthesis is for you if...

  • You want to connect with like-minded individuals and join a community of people interested in the transformative responsible use of psychedelics.
  • You’ve been stuck on a major existential problem for an extended period of time and are looking for creative inspiration.
  • You want to explore the outer reaches of your consciousness, unlocking aspects of your mind that have yet to be accessed.
  • You’re curious about the utility of psychedelics and want to use them in a safe, legal, and intentional setting.
  • You feel like there’s a psychological or emotional blockage preventing you from reaching that next stage in your personal development.
  • You want to press reset on your mind, and break out of your tired, habituated thought patterns.
  • You’re open to the potential value of psychedelics but haven’t found the right time and place yet.
  • You’re intent on being your best self and you want to learn how to utilize psychedelics to accelerate the process of personal development.  

Synthesis is not for you if...

  • You have a clinical diagnosis of depression, bipolar, borderline, PTSD, or schizophrenia.
  • You have a family history of schizophrenia or psychosis.
  • Currently prescribed to antidepressant medications (please contact us if you want to be notified when medical spots open up).
  • You are just looking to get high and have fun.  

Your journey to a fuller, more meaningful life begins here.

Apply Now