Educational information, not medical advice — ask your doctor or midwife.
Quishuar is a small Andean tree, Buddleja incana. Its leaves, bark and flowers are used in folk medicine in Peru, Bolivia and Ecuador. People brew them as a tea or use them to wash the skin.
The tree is also valued for its wood and for planting on eroded hillsides. It grows high in the mountains, often above 3,000 metres. Andean communities have treated it as a useful and sometimes sacred tree for centuries.
Here is the honest verdict. Long traditional use is not proof that a plant works, and it is not proof that it is safe. For quishuar there are no good human trials at all, so its benefits and its risks are both largely untested.
That does not mean it is dangerous. It means no one can tell you what it does in people with any confidence.
No one has shown how quishuar works in the human body. There is no trial that tracks what it does once you drink it.
What exists is laboratory work, mostly on other Buddleja species. In test tubes, extracts of these plants mop up free radicals, which are unstable molecules linked to cell damage. Whether that matters in a person is unknown.
In cell studies, verbascoside from Buddleja plants appears to lower some markers of inflammation. In animals, related compounds have shown mild liver-protecting effects. Neither finding has been repeated in people.
For skin use, the traditional idea is that the wash cleans and soothes a wound. Some Buddleja extracts slow bacteria in the lab. It is not established that this happens on human skin.
Treat every mechanism claim here as a hint, not a result.
Quishuar is mostly a local remedy. It is rarely sold as a packaged product outside the Andes.
Dried leaf and bark are the usual form. They are simmered or steeped to make a tea.
Fresh crushed leaves are used as a poultice, laid on cuts, bruises or sore joints.
A strong brew is sometimes used cold as a wash for skin, or added to a bath.
Tinctures and powdered leaf show up now and then from Andean herb suppliers and online sellers.
Standardised capsules are uncommon. Where a label does exist, it rarely states how much active plant matter is inside. That makes one batch hard to compare with another.
Andean peoples have used quishuar for a very long time. Records of its use go back to the Inca period and earlier.
It was treated as a sacred tree in parts of the Andes. It was planted near temples, fields and homes. Its hard wood was carved and used for tools.
Healers brewed the leaves for coughs and chest colds. Washes and poultices were applied to wounds, swellings and aching joints. Some communities used the tea for stomach and liver complaints.
It still appears in Andean markets and in regional herbal practice today. None of this history was built on controlled testing.
Stop using quishuar and see a doctor if any of these happen.
You get a rash, swelling of the lips or face, or trouble breathing. Call emergency services for breathing trouble or throat swelling.
You notice yellow skin or eyes, dark urine, or pain in the upper right side of your belly. These can be signs of liver trouble.
You have vomiting or diarrhoea that lasts more than a day. A wound gets redder, hotter or starts to ooze. A cough lasts over three weeks or brings up blood.
Quishuar is not an approved medicine in the United States, the United Kingdom or the European Union. Where it is sold there, it is a plant product or dietary supplement, and no health claim is authorised. In Peru, Bolivia and Ecuador it is a traditional plant sold freely in markets.
Evidence grades and traditional-use labels are explained in our methodology. Nothing here is medical advice.
What it is typically used for, usual dose, cautions, and the study behind it where real trial data exists.
One email with the summary. We'll also send a short weekly evidence update — unsubscribe any time.
