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Aroeira

Early evidence for: Bacterial vaginosis (a common vaginal infection), as a gel; Wound care; Sore gums and mouth rinses; Stomach upset.

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What is Aroeira? Aroeira is a small evergreen tree from Brazil, Paraguay and Argentina. Its dried pink berries are sold as pink peppercorns. In Latin American folk medicine, the bark, leaves and berries were used for wounds, sore gums and stomach upsets. The plant sits in the cashew family, along with mango and poison ivy. That family link matters. The sap, berries and pollen can set off rashes and breathing trouble in people who react to those plants. Long use in a tradition is not proof that a remedy works, and it is not proof that it is safe. The evidence here is thin. A few small Brazilian trials of a vaginal gel look promising; most other uses rest on lab work and custom alone. How does Aroeira work? Most of what is claimed for aroeira comes from the lab bench, not from people. In test tubes, bark and leaf extracts slow the growth of several bacteria and yeasts. This includes germs linked to vaginal and skin infections. Whether the same thing happens in the body is not settled. In animal studies, the extracts calm swelling and help skin wounds close faster. Researchers credit the tannins and the resin-like compounds in the bark. Human proof of this is limited to a few small trials. The berry oil also kills some insects and mites in lab tests. That is a farm-science finding, not a health claim. The same oils can irritate human skin. What forms does Aroeira come in? Aroeira reaches you in very different strengths, from a kitchen spice to a medical gel. Dried pink berries, sold as pink peppercorns for cooking. Bark decoction, the traditional home form, made by simmering bark in water. Tinctures and capsules of bark or leaf, sold as supplements. These are rarely standardised, so strength varies a lot between brands. Vaginal gel made from standardised bark extract, sold in Brazil as a registered herbal medicine. Essential oil, plus soaps, creams and mouthwashes that list the extract. The spice and the medicinal bark are not the same product. A pinch of pink peppercorns in food is not a dose of aroeira bark extract. Where it comes from: Aroeira has been used in Brazilian folk medicine for hundreds of years. Indigenous peoples, and later settlers, washed wounds and sores with bark water. Bark teas were taken for stomach pain, coughs and women's complaints. Healers also used it for toothache, sore gums and skin trouble. The berries travelled to Europe in the 1800s as a pepper-like spice. The tree later spread as a weed in Florida, South Africa and Hawaii. Brazil's health service lists aroeira among plants of interest for research. A standard bark extract appears in the Brazilian pharmacopoeia. Those listings show official interest and traditional standing, not proven benefit.

Helps

What does Aroeira help with? Bacterial vaginosis (a common vaginal infection): This is the only use with real human trial data. Small Brazilian studies tested a standardised bark gel against metronidazole, a standard antibiotic. Cure rates were broadly similar over a week or so of use. The trials were small and run in one country. Some had links to the maker. No large independent trial has repeated the result. This is not a reason to skip treatment your doctor has prescribed. Wound and episiotomy (surgical cut during childbirth) healing: Tradition used bark washes on cuts, sores and ulcers. A few small Brazilian trials looked at creams and gels on healing wounds. Results hinted at faster comfort and healing, but the studies were small and weakly designed. Deep, dirty or infected wounds need medical care, not a plant wash. Sore gums and mouth inflammation: Mouth rinses with aroeira bark are an old Brazilian home remedy. Lab tests show the extract slows some mouth bacteria. Small dental studies have tested rinses and gels with mixed, early results. The evidence does not show it treats gum disease. Stomach upset and ulcer pain: Bark teas were taken for stomach pain and heartburn. In rats, extracts reduced stomach damage from acid and drugs. There is no good human trial for this use. Ulcers often come from H. pylori bacteria or painkillers, and both need proper testing and treatment. Skin infections and itchy rashes: Folk use included washes for rashes, fungus and insect bites. In lab tests, the extract slows some skin bacteria and fungi. Whether it clears an infection on real skin has not been shown. There is a twist here. The same plant causes allergic rashes in many people, so it can worsen the problem it is meant to treat. Joint pain and swelling: Poultices and baths were used for aching joints. Animal studies show the extract lowers swelling markers. No human trial supports this use, so treat it as tradition only.

Aroeira

Quick Facts

  • What it is: A Brazilian tree in the cashew family whose bark, leaves and pink berries are used in Latin American folk medicine.
  • Main uses: Bacterial vaginosis (a common vaginal infection), as a gel, Wound care, Sore gums and mouth rinses, Stomach upset
  • Active ingredients: Alpha-pinene, Limonene, Delta-3-carene, Tannins and gallic acid, Masticadienoic acid, Schinol, Alkenyl phenols
  • Forms: Dried pink berries (spice), Bark decoction, Tincture, Capsules, Vaginal gel, Essential oil, Creams and mouthwash
  • Time to effect: About a week in the small gel trials; unknown for other uses
  • Side effects: Allergic skin rash is common; stomach upset and breathing irritation also occur.
  • Pregnancy & breastfeeding: Not studied in pregnancy; avoid unless your clinician advises otherwise.

Educational information, not medical advice — ask your doctor or midwife.

What is Aroeira?

Aroeira is a small evergreen tree from Brazil, Paraguay and Argentina. Its dried pink berries are sold as pink peppercorns. In Latin American folk medicine, the bark, leaves and berries were used for wounds, sore gums and stomach upsets.

The plant sits in the cashew family, along with mango and poison ivy. That family link matters. The sap, berries and pollen can set off rashes and breathing trouble in people who react to those plants.

Long use in a tradition is not proof that a remedy works, and it is not proof that it is safe. The evidence here is thin. A few small Brazilian trials of a vaginal gel look promising; most other uses rest on lab work and custom alone.

How does Aroeira work?

Most of what is claimed for aroeira comes from the lab bench, not from people.

In test tubes, bark and leaf extracts slow the growth of several bacteria and yeasts. This includes germs linked to vaginal and skin infections. Whether the same thing happens in the body is not settled.

In animal studies, the extracts calm swelling and help skin wounds close faster. Researchers credit the tannins and the resin-like compounds in the bark. Human proof of this is limited to a few small trials.

The berry oil also kills some insects and mites in lab tests. That is a farm-science finding, not a health claim. The same oils can irritate human skin.

What forms does Aroeira come in?

Aroeira reaches you in very different strengths, from a kitchen spice to a medical gel.

Dried pink berries, sold as pink peppercorns for cooking.

Bark decoction, the traditional home form, made by simmering bark in water.

Tinctures and capsules of bark or leaf, sold as supplements. These are rarely standardised, so strength varies a lot between brands.

Vaginal gel made from standardised bark extract, sold in Brazil as a registered herbal medicine.

Essential oil, plus soaps, creams and mouthwashes that list the extract.

The spice and the medicinal bark are not the same product. A pinch of pink peppercorns in food is not a dose of aroeira bark extract.

Where it comes from:

Aroeira has been used in Brazilian folk medicine for hundreds of years. Indigenous peoples, and later settlers, washed wounds and sores with bark water. Bark teas were taken for stomach pain, coughs and women's complaints.

Healers also used it for toothache, sore gums and skin trouble. The berries travelled to Europe in the 1800s as a pepper-like spice. The tree later spread as a weed in Florida, South Africa and Hawaii.

Brazil's health service lists aroeira among plants of interest for research. A standard bark extract appears in the Brazilian pharmacopoeia. Those listings show official interest and traditional standing, not proven benefit.

Who should avoid Aroeira?

  • Do not use aroeira if you are allergic to cashew, mango, pistachio or poison ivy, as cross-reactions are common
  • Do not use it in any form if you are pregnant, because of old use as a remedy to bring on periods and a lack of safety data
  • Avoid it while breastfeeding, as nothing is known about what passes into milk
  • Never burn aroeira wood or leaves and breathe the smoke, which can irritate eyes, skin and airways
  • Do not give bark teas, tinctures or capsules to children
  • Do not swallow the essential oil
  • Do not apply it to deep, large or infected wounds or to burns
  • Do not use it in place of a prescribed antibiotic for a vaginal infection
  • Avoid it if you take a blood thinner (anticoagulant), such as warfarin, unless your doctor agrees
  • Avoid it if you have liver or kidney disease, as there is no safety data in these groups

When should you see a doctor?

Stop using aroeira and get medical help straight away if you have swelling of the face, lips or tongue, trouble breathing, a fast heartbeat, or a blistering rash that spreads.

See a doctor within a day or two if a rash keeps growing, a wound looks more red or oozes, or you have ongoing vomiting or stomach pain.

Book an appointment if vaginal symptoms do not clear in a week, come back, or you are pregnant. Vaginal infections need proper testing.

Is Aroeira legal where you live?

In the United States and the European Union, the dried berries are sold as an ordinary food spice. Capsules and tinctures are sold as food supplements, not as approved medicines.

In Brazil, a standardised bark gel is registered as a herbal medicine and the plant is listed in the national pharmacopoeia. No regulator has approved it as a treatment for the other uses on this page.

Evidence grades and traditional-use labels are explained in our methodology. Nothing here is medical advice.

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