What is Chuchuhuasi?

Chuchuhuasi is the bark of a tall Amazon rainforest tree, Maytenus krukovii. In folk practice it is taken for joint pain, back pain, stiffness and tiredness. Its standing in Amazonian tradition is strong, but human trial evidence is essentially absent.

You will usually meet it as bark chips soaked in cane rum, or as a bottled tincture, tea or capsule sold as a "tonic" or joint remedy. In Peru, Ecuador, Colombia and Brazil a small glass of the rum steep is a household staple.

A long history of use tells you a plant is familiar and broadly tolerated by the people who use it. It does not tell you the plant works, and that point is made here once for the whole page.

How does Chuchuhuasi work?

Nobody has shown how chuchuhuasi works in people. The honest answer is that the mechanism is unproven.

Laboratory work suggests the bark contains compounds that can damp down inflammation (the body's swelling-and-pain response) and relax smooth muscle. These are test-tube and animal findings, and they do not prove anything about your joints.

Most traditional preparations are soaked in strong alcohol. Some of the warming, loosening feeling people describe may simply be the alcohol.

What forms does Chuchuhuasi come in?

Chuchuhuasi is sold in a few simple forms:

Bark chips or shavings, simmered into a decoction (a strong boiled tea).

Alcohol tincture or the traditional rum maceration, where bark sits in cane spirit for weeks.

Powdered bark in capsules, and occasionally as an ingredient in multi-herb "joint" or "energy" blends.

Quality varies widely. Bark is sometimes mislabelled, and the related species Maytenus macrocarpa is often sold under the same name.

Where it comes from:

Chuchuhuasi has been used for generations by Indigenous and mestizo communities of the western Amazon, including Quechua, Shipibo and Kichwa peoples. The name is often translated as "trembling back", pointing to its main use for back and joint pain.

It spread through Amazonian market towns as a rum-steeped tonic and reached the international supplement trade in the late twentieth century.

What does Chuchuhuasi help with?

• Joint pain and arthritis (painful, swollen joints): This is the main traditional use, and the one with the most laboratory support. Extracts have reduced inflammation markers in animal and test-tube work. No published human trial shows it eases arthritis pain, so treat this as tradition, not proof.
• Back pain and muscle stiffness: Amazonian users take the rum steep for aching backs and stiff limbs after hard physical work. Nothing beyond that reported experience supports it. Any short-term ease may partly reflect the alcohol in the preparation.
• General tiredness and low energy: The bark is widely used as a daily tonic and strength-builder. There is no human research on energy, stamina or fatigue. Do not use it to explain away tiredness that keeps getting worse.
• Menstrual cramps: Some traditional healers give it for period pain and irregular periods. Animal work hints at effects on the uterus, which is also a reason to avoid it in pregnancy. Human evidence is absent.
• Loose stools and mild stomach upset: The tannins in the bark are astringent, meaning they tighten tissue and can firm up stools. This matches the traditional use for diarrhoea. It has not been tested in people, and diarrhoea that lasts more than a couple of days needs a doctor.

Which foods are rich in Chuchuhuasi?

Chuchuhuasi is a medicinal tree bark, not a food. It is not part of any normal diet.

What are the side effects of Chuchuhuasi?

• Nausea or stomach ache, especially on an empty stomach
• Dry, puckering mouth from the tannins
• Loose stools or constipation
• Dizziness or drowsiness, mainly from alcohol-based tinctures
• Skin rash in people sensitive to the bark

Good to know:

Most reported problems are mild and settle when you stop. Because chuchuhuasi has never been through a safety trial, rarer harms would not have been picked up. Stop taking it and get medical advice if you notice yellow skin or eyes, unusual bruising, or a rash that spreads.

How much Chuchuhuasi should you take?

• Recommended daily: No safe or effective dose has been established in human research. What follows is traditional practice only, not a recommendation. Decoction: about 1 to 2 grams of dried bark simmered in water for 10 to 15 minutes, once or twice a day. Tincture or rum steep: roughly 1 to 2 millilitres, up to three times a day. Capsules: commonly 500 to 1000 milligrams a day, following the label. Start at the low end. Products differ hugely in strength, and there is no way to check what is actually in the bottle.
• Best time of day: Traditionally taken in the morning as a tonic, or in the evening when it is used for pain and stiffness. Avoid the alcohol-based forms before driving or operating machinery.
• With or without food: Take it with food. The tannins can irritate an empty stomach and cause nausea.
• Time to effect: Users often describe a warming effect within an hour of the alcohol preparations. Any claim of effect on joint pain over days or weeks has not been measured in a trial.
• How long to take it: There is no tested safe length of use. Traditional use is short bursts for a painful spell rather than daily use for years. Stop after about four weeks and speak to a doctor before going longer.