Psychedelic Integration for Lasting Connection
ACER Integration is a 13 month online programme for psychedelic integration, created by clinical psychologist and psychedelic researcher Dr Rosalind Watts.
Guided by science | Grounded in nature | Rooted in connection
What is ACER Integration?
ACER Integration is a structured 13-month online programme designed to help people make sense of psychedelic experiences and carry them forward into lasting change.
Founded by Dr. Rosalind Watts, clinical psychologist and clinical lead on the Imperial College London psilocybin for depression trials, ACER draws on nature, community, and scientific insight to support the work of integration.
The programme unfolds in small, carefully held cohorts, with participants journeying together over thirteen months.
Each month explores a different theme, inspired by a specific tree and the wisdom it offers. Along the way, the community comes together for a rich programme of live sessions, including sharing circles, breathwork, Q&A, dance and much more.
Between live sessions, participants have ongoing access to our community platform, which holds a rich library of bespoke resources, practices and materials to support their journey.
And perhaps most importantly, the community is always there. A vibrant, international network of people journeying alongside one another, offering opportunities for connection, reflection and belonging throughout the thirteen months.
What does ACER mean?
Accept
accepting ourselves as we are, knowing that no state of Self is ever permanent. Being patient with our own internal seasons and processes and extending that same acceptance and patience to others.
Connect
connecting to who we are at our core and acknowledging that we are more than just individuals. We are part of a great interconnected web of life, and that this connection to others and to nature is a critical part of our own wellbeing.
Embody
honouring the innate wisdom of our body and working with both body and mind in tandem. Feeling our feelings, increasing our body literacy, listening to, and learning to trust, our body.
Restore
restoring to the cycles and patterns of nature. Trusting in the unfolding of seasons that exists within all of us, as it does around us.
Where ACER takes you
Learn if ACER is Right for You
Step 1
Begin with an info pack or a free discovery call. If your application is accepted you join a small, carefully held cohort in October or April.
Step 2
The ACER Cycle
Join us in a global community where each month in the 13- month programme holds a theme drawn from a specific tree and a different quality to explore and integrate. Live sessions including sharing circles, breathwork, dance, and spaces to be fully seen and witnessed underpin the cycle.
12 Trees Stewardship Training
Step 3
After the Cycle, some participants join the 12 Trees Stewardship Training to train to hold their own circles in their local communities.
What to expect
ACER is a year built around a small, steady rhythm, held in community from start to finish.
Global
A vibrant online community
Flexible
£1440 standard fee for the year with payment plans and supported pricing available
Biannual
Cycles begin in April and October each year
Why ACER?
Something opened in you. Through a psychedelic experience, a period of therapy, or a moment that shifted your perspective. For a time, things felt clearer. You felt more present, more honest, more alive. Then life resumed, and gradually that sense of connection became harder to hold.
Dr. Rosalind Watts's research showed that experiences like these can deepen connectedness to self, others, and the wider world. But in the absence of structures that support what follows, that openness fades. ACER Integration was created to change that. Drawing on psychological theory and the wisdom of the natural world, it provides the ongoing environment in which connection can become something stable and lived, not just something remembered.
Dr. Rosalind Watts
Our Founder
Ros is a clinical psychologist who led the psilocybin for depression trials at Imperial College London. This research that became a landmark in the science of psychedelic therapy. She came to ACER not just as a researcher, but as someone who had seen, again and again, that the experience itself is only the beginning.
ACER is her response to that gap. A programme built on the evidence, on her clinical experience, and on something harder to quantify: the understanding that lasting change needs community, nature, and time.
She developed the Watts Connectedness Scale, a validated measure of connectedness used in psychedelic research worldwide, and continues to publish and speak on integration, nature, and the future of psychedelic care.
Community Stories
We are honoured that so many incredible people have come to join us at ACER. Everyone that joins brings something to the community and many of them have become integral to our offering as Elders, sharing circle facilitators, and hosts for our community events.
You can listen to more stories from our community by clicking the button below.
Join our next cohort
Request an info pack for the full picture or apply directly if you're ready.
Want more personalized information? Book a free discovery call.
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