What Is Kambo?

Kambo is the dried secretion of an Amazonian tree frog, applied to small burns on your skin. We give it at Harmonica alongside our ayahuasca work, and Sergio has been running kambo sessions here near Medellín for years. It makes you violently sick for about twenty minutes, on purpose.

The purge is the point. Your face swells, your heart races, you throw up, and then it passes. Most people feel light for several days afterwards. Whether that trade is worth making depends on your heart, your medication list, and how carefully the person applying it screens you first.

Where Kambo Comes From

Kambo comes from Phyllomedusa bicolor, the giant monkey frog, which lives in the canopy of the western Amazon. The frog is not killed and it is not kept. It is found at night by its call, and its limbs are tied to four small stakes. The waxy secretion is scraped off its back with a stick and dried on a flat piece of wood, and then the frog goes back into the trees.

A practitioner brings that dried stick out on the day and softens it with a drop of water. One frog supplies many sessions, and a single stick lasts a long time.

The tribes who have used it longest, the Matsés, Katukina and Yawanawá among them, take it before hunting rather than as therapy. It clears the body, sharpens the senses and removes panema, their word for the heaviness that makes a hunter miss. Using kambo as a health treatment is a recent western idea, and worth holding lightly for that reason.

What Happens in a Kambo Ceremony

A kambo ceremony runs about an hour, and the hard part is roughly twenty minutes of it. You arrive on an empty stomach after twelve hours without food. The session goes in this order.

1. Water. You drink a litre or two beforehand. A careful practitioner measures it. Too much water is the single most dangerous mistake in kambo.
2. The burns. Small points are burned into the skin with the tip of a vine, usually on the shoulder, forearm or ankle. It takes off the top layer of skin. It stings, and it is over in seconds.
3. Application. Dots of the softened secretion go onto the open points. The peptides are absorbed through the open points rather than swallowed.
4. The rush. Within a minute your face flushes and swells, your heart rate climbs, and heat moves through you. Your head stays clear the whole time.
5. The purge. Most people vomit within five to fifteen minutes. Some also empty the other end. Most people dread this part and are glad afterwards that they went through it.
6. Removal. The practitioner scrapes the medicine off the points and the effect drops away within minutes.
7. Rest. You lie down, sip water slowly, and eat something light an hour or two later.

Facial swelling can carry into the next morning, especially around the eyes. That is the normal course of it rather than an allergic reaction. If you have sat through an ayahuasca purge, kambo is shorter, sharper and entirely physical.

What People Use Kambo For

Kambo is sold for a long list of complaints, and the evidence behind that list is thinner than the marketing around it. The secretion does contain peptides with measurable effects. Dermorphin and deltorphin are opioid peptides. Phyllomedusin acts on the gut and drives the purge. Phyllocaerulein lowers blood pressure and stimulates the stomach.

None of that is the same as a clinical trial of kambo in people. There is no good evidence that kambo cures cancer, HIV, Lyme disease or an autoimmune condition, and anyone selling it to you on those grounds is selling you something.

What people report to us, consistently enough that we pay attention, is narrower and less dramatic than the sales copy.

• A few days of unusual mental clarity.
• Less of the low-grade heaviness that settles in the body after a hard year.
• Better sleep for a week or so.
• A sense of having closed off a period and started another one.

What would change our answer is a controlled human trial. If one lands showing kambo does something specific for a named condition, we will say so on this page. The human literature so far is case reports, and a 2022 review in Toxicology Reports collected the acute poisoning cases on record.

What Kambo Scars Look Like

Kambo leaves small round scars, pale and slightly raised, in whatever pattern the practitioner burned. Most fade a long way inside a year or two. Most do not disappear completely.

A first session is usually three to five points. Placement is yours to choose. The outer shoulder and upper arm are traditional, while the ankle and the outside of the calf sit under normal clothes. Some people ask for the same points to be reused session after session so the marks stay in one small group.

Two things make the scars worse than they need to be: picking the scabs, and sun on them while they heal. Keep them covered for a week. If you keloid or scar heavily, say so before the burns are made, and a practitioner can use fewer and smaller points.

Is Kambo a Drug?

Kambo is not psychoactive. You do not hallucinate, you do not lose track of where you are, and there is no comedown. You get an intense physical event with a clear head throughout, which is most of why it feels nothing like ayahuasca.

It is not a controlled substance in Colombia or the United States, because none of the peptides are scheduled. Australia has restricted it. Legal is not the same as regulated, though. There is no licensing body, no required training standard, and nobody checking that the person holding the stick knows what a cardiac contraindication looks like.

Who Should Not Take Kambo

Kambo is genuinely dangerous for some people. A 2025 systematic review of sudden deaths after kambo traces them to two things: a heart that could not take the strain, and too much water. Do not take kambo if any of the following apply to you.

• A heart condition, an arrhythmia, or any past cardiac event
• Pregnancy or breastfeeding
• An organ transplant, or immunosuppressant medication
• Low blood pressure that already causes you trouble
• Epilepsy or a history of seizures
• A past stroke, brain haemorrhage or aneurysm
• Chemotherapy, current or recent
• Addison’s disease or another adrenal condition
• Serious kidney or liver disease
• An acute mental health crisis
• Being under 18

Water is the risk people underestimate. Drinking litre after litre to help the purge along dilutes the sodium in your blood, and that dilution has put people in intensive care. Anyone who tells you to drink as much as you possibly can should not be putting kambo on your skin.

Screening is the other half. Sergio works to a strict no-risk policy and will not serve anyone he is not certain about. That means health questions before you sit down, and people turned away on the answers. A practitioner who does not ask you those questions has already told you whether to let them do it.

Kambo and Ayahuasca in the Same Week

Kambo and ayahuasca do different jobs. Kambo works on the body. Ayahuasca works on what you have been avoiding looking at. People who come to us for both usually find the combination useful, and we still do not give them on the same day.

Kambo before a ceremony, with a day in between, can suit you so you go in lighter. Kambo afterwards can be the better call, when the body still feels heavy days later and the integration has stalled. Sergio decides which, based on how someone is doing rather than on a schedule.

If you are already booked with us and want to add kambo to your week, raise it on your call. We also run standalone sessions in the city, and the practical details are on our kambo in Medellín page. For the other Amazonian medicine people ask about in the same breath, see our guide to rapé.

If you want to know what kambo is like for a body like yours, book a free consultation call. We will go through your health history before you decide anything.

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