An ayahuasca retreat is a structured, multi-day program where participants drink a psychoactive brew from the Amazon under the guidance of a facilitator or shaman, typically in a group ceremony setting. Most retreats last 6 to 8 days, include multiple ceremonies, and combine the psychedelic experience with preparation beforehand and reflection afterward. They take place at dedicated centers in countries like Peru, Colombia, Costa Rica, and parts of Europe, with prices ranging from about $1,000 for a short program to $8,000 for longer, more intensive ones.
What Ayahuasca Actually Is
Ayahuasca is a brew made from two plants native to the Amazon: the vine Banisteriopsis caapi and the leaves of Psychotria viridis. The leaves contain DMT, a powerful psychedelic compound. Normally, your gut breaks down DMT before it ever reaches your brain, which is why simply eating the leaves wouldn’t produce any effect. The vine solves that problem. It contains compounds called beta-carbolines (harmine, harmaline, and tetrahydroharmaline) that temporarily block the enzyme responsible for destroying DMT. With that enzyme suppressed, DMT passes into your bloodstream and crosses into the brain, producing intense visions, emotional experiences, and altered states of consciousness lasting four to six hours.
Indigenous communities across the Amazon have used this combination in ceremonial contexts for centuries. The brew is thick, dark brown, and famously bitter.
What Happens During a Ceremony
A typical ceremony takes place at night in a communal space, often a large open-air structure called a maloca. Participants sit or lie on individual mats arranged in a circle. The facilitator, sometimes called a shaman or curandero, opens the ceremony, blesses the brew, and serves each person a small cup. The effects usually begin within 30 to 60 minutes.
During the experience, the facilitator sings traditional songs called icaros, which are considered central to guiding the visions and energy of the ceremony. Assistants are present to help anyone who needs physical support, whether that means walking to the bathroom or simply being reassured during a difficult moment. Ceremonies typically last four to six hours, ending in the early morning hours.
The experiences people report vary enormously. Some describe vivid, narrative visions. Others experience intense emotional releases: grief, joy, fear, or a sense of connection. Some sessions feel gentle and others feel overwhelming. Most retreats include two to four ceremonies spread across the program, giving participants time to rest and process between sessions.
The Purge Is Part of the Process
Vomiting is so common during ayahuasca ceremonies that retreat centers place buckets next to each participant’s mat. Diarrhea also occurs frequently. From a physiological standpoint, the enzyme-blocking compounds in the brew raise serotonin levels in the gut, which stimulates the vagus nerve and triggers nausea. The brew itself is also simply hard on the stomach.
In traditional Amazonian practice, this purging is not treated as an unwanted side effect. It’s considered a core part of the healing process. Practitioners describe it as the body expelling negative emotions, stagnant energy, or psychological material that surfaces during the experience. Many participants report that vomiting often coincides with moments of emotional release, as if the physical act of purging corresponds to letting go of something internal. Researchers have drawn parallels to the ancient Greek concept of catharsis: purification through the release of difficult emotions. Whether you find that framework meaningful or not, the vomiting is essentially guaranteed, and retreats treat it as normal.
Preparation and the Dieta
Reputable retreats require participants to follow dietary restrictions for one to two weeks before arriving. This isn’t arbitrary. Because ayahuasca contains potent enzyme inhibitors (the same class of compounds found in a type of antidepressant called MAOIs), eating certain foods during that window can cause dangerous spikes in blood pressure. The restricted foods are those high in tyramine, a compound that accumulates in aged, fermented, and cured products.
Foods you’ll typically be told to avoid include:
- Aged cheeses like cheddar, Parmesan, brie, feta, and blue cheese
- Cured and processed meats like pepperoni, salami, bacon, and smoked fish
- Fermented foods like sauerkraut, kimchi, pickles, and tofu
- Alcohol in any form
Most retreats also ask participants to avoid caffeine, refined sugar, red meat, and sexual activity in the days leading up to ceremony. Once you arrive, the center typically provides simple, clean meals: rice, vegetables, fruits, and light proteins. This restricted eating, sometimes called “la dieta,” is framed both as a safety measure and as a way to make the body more receptive to the experience.
Serious Safety Risks
The most dangerous interaction involves ayahuasca and antidepressants, particularly SSRIs. Because ayahuasca powerfully inhibits the enzyme that regulates serotonin, combining it with medications that also increase serotonin can trigger serotonin syndrome, a potentially fatal condition involving dangerously high body temperature, seizures, and organ failure. This is not a theoretical risk. Anyone taking SSRIs, SNRIs, or other serotonergic medications needs to taper off under medical supervision well before attending a retreat, a process that can take weeks.
Reports of malpractice by ceremony facilitators are growing. Some centers operate with undertrained staff, too many participants, and no medical screening. The International Center for Ethnobotanical Education, Research, and Service (ICEERS) recommends investigating any retreat thoroughly before attending: ask about the facilitator’s training and references, the number of participants per ceremony, how many assistants will be present, and what medical screening is required. Facilities offering ayahuasca in Peru, one of the most popular destinations, are not regulated by the Peruvian government and may not follow health or safety standards.
What Integration Means and Why It Matters
Integration is the process of making sense of what you experienced in ceremony and applying it to your daily life. Every serious retreat emphasizes this, and many include dedicated integration sessions with counselors or facilitators in the days after ceremony. The reasoning is straightforward: the insights, emotional breakthroughs, or visions that arise during ayahuasca can feel profound in the moment but fade quickly without deliberate effort to anchor them.
Common integration practices include journaling (writing down visions, emotions, and recurring themes before they blur), spending extra time in rest and solitude, eating clean and simple food for weeks after the retreat, and maintaining contact with a therapist or integration circle. Many participants describe the weeks after a retreat as a continuation of the process rather than its conclusion. Fatigue, heightened emotions, and vivid dreams are common in the days following ceremony and are generally treated as part of the healing rather than a problem to fix.
What the Research Shows So Far
Clinical research on ayahuasca is still in early stages, but results for depression have been encouraging. In one longitudinal study of clinically depressed patients, average depression scores dropped by roughly half within one day of drinking an ayahuasca analogue. After one month, 13 out of 19 participants were in remission. After one year, 12 out of 17 remained in remission. Separate studies on treatment-resistant depression have shown rapid symptom relief lasting one to three weeks after a single dose, including results from a placebo-controlled trial.
These are small studies, and the findings are preliminary. But they’re consistent enough that researchers are actively pursuing larger trials. The combination of the psychedelic experience itself, the ritualized setting, and the integration work afterward may all contribute to the outcomes, making it difficult to isolate exactly what’s driving the improvements.
Cost, Duration, and Location
The typical retreat runs 7 to 14 days when you include preparation and integration time, though shorter 3 to 5 day programs exist. A week-long retreat at an established center generally costs $1,000 to $3,000, with significant variation based on location. Peru and Colombia are the most affordable options, averaging $110 to $200 per day. Costa Rica and Western Europe are considerably more expensive, averaging $400 to $500 per day. A comprehensive 12 to 21 day program can run $2,200 to $8,000. Single-night ceremonies, offered outside the retreat format, typically cost $430 to $750.
These prices usually include accommodation, meals, ceremonies, and some level of integration support. Higher-end retreats may add individual therapy sessions, bodywork, or extended post-retreat coaching. Location also affects the style of ceremony: Peruvian retreats tend to follow closer to traditional Shipibo or Quechua practices, while centers in Costa Rica or Europe may blend indigenous traditions with Western therapeutic frameworks.
Legal Status
DMT, the active psychedelic compound in ayahuasca, is a Schedule I controlled substance in the United States and is illegal in many other countries. The legal landscape is complicated because the plants themselves are not always explicitly banned, even where DMT is. In Brazil, ayahuasca use is legal within religious contexts. In Peru, the brew is culturally tolerated and widely available to tourists, but facilities are unregulated. Some U.S.-based churches have obtained legal exemptions for ceremonial use, though these are narrow and specific. In most of Europe, ayahuasca occupies a legal gray area, with enforcement varying by country. If you’re considering a retreat, understanding the legal framework in both the retreat’s location and your home country is worth the research.