Barbatimão

What is Barbatimão?

Barbatimão is the bark of a small tree of the Brazilian savanna, Stryphnodendron adstringens. Healers in Brazil have long used it on wounds, sores, gums and skin. Today it is sold as bark powder, washes, tinctures and creams.

The bark is very rich in tannins. Tannins are plant compounds that bind to protein and make raw tissue pull tight and dry. That is why the bark tastes harsh and why it is called "adstringens".

Here is the honest verdict. A few small Brazilian studies suggest a bark cream may help some skin wounds heal. The work is early, and much of it is small or not blinded.

Taking the bark by mouth is far less studied than using it on skin. Long traditional use is not proof that a remedy works, and it is not proof that it is safe.

How does Barbatimão work?

The leading idea is simple. Tannins bind the proteins on a raw wound surface and form a tight, dry layer. In lab and animal work this can slow bleeding and fluid loss.

In animal wounds, barbatimão extracts appear to raise collagen, the protein that rebuilds skin. Some animal studies also show faster closing of the wound edge. These are early findings, not proof of a human effect.

In test tubes, the extract slows the growth of some bacteria and yeasts. Whether that happens on living skin is not established.

Cell studies suggest the tannins may calm signs of swelling and mop up reactive molecules. No study has shown this changes the course of any disease in people.

What forms does Barbatimão come in?

Barbatimão is used mainly on the skin and in the mouth.

Common forms include:

- Creams, gels and ointments holding a standard bark extract - Dry bark, whole or powdered, boiled to make a wash - Liquid extracts and tinctures, often diluted before use - Soaps, wound sprays and sitz bath products - Capsules of bark powder, sold for internal use

In Brazil, cream and gel products are the best studied forms. Capsules for internal use have the least support.

Strength is often given as a percentage of bark extract in the base. Many products do not state it at all.

Where it comes from:

Barbatimão has a long standing in Brazilian folk medicine. Indigenous and rural healers in the Cerrado region used the bark on wounds, burns, sores and snakebites.

Bark decoctions were used as a mouth rinse for sore gums, and as a wash for vaginal discharge. The bark was also taken for loose stools and bleeding complaints.

Colonial-era accounts from the 1700s and 1800s record the bark as a wound remedy and a tanning agent for leather. Its drying, tightening quality was the shared thread in every use.

Brazil's health service later placed the plant on its national list of medicinal plants of interest, which funded further study. That listing reflects traditional standing and research interest, not a settled proof of benefit.

What does Barbatimão help with?

• Slow-healing skin wounds and leg ulcers: This is the best-studied use, and the evidence is still limited. Brazilian trials have tested a bark cream on chronic leg and foot wounds. Some reported faster closing than standard dressings alone. The trials were small, and several were not blinded. That makes the result easy to overstate. A chronic wound needs proper medical care, not a cream on its own.
• Pressure sores: Small hospital studies in Brazil have used barbatimão cream on pressure sores in bedbound patients. Reported results were mixed to mildly positive. Numbers were low and follow-up was short. There is not enough evidence to call this a proven treatment.
• Healing after episiotomy or childbirth tears: Tradition used bark washes to dry and tighten the area after birth. A few small studies have looked at gels or washes for episiotomy wounds. Results suggest possible comfort and faster surface healing. The studies are too small to settle the question. This use should be raised with your midwife or doctor first.
• Minor cuts, grazes and burns: Folk use for small wounds is widespread across rural Brazil. Animal wound studies back the idea that tannins tighten raw tissue. No good human trial covers everyday cuts and burns. Clean water and standard first aid remain the baseline.
• Sore or bleeding gums and mouth sores: A dilute bark rinse was a standard folk remedy for sore, bleeding gums. In lab tests the extract slows some mouth bacteria. Human evidence is sparse and small. Bleeding gums can signal gum disease, which needs a dentist.
• Vaginal discharge and irritation (traditional wash): Bark washes and sitz baths were a common folk treatment for discharge. There is almost no reliable human trial evidence for this use. Discharge has many causes, some needing antibiotics. Self-treating can delay the right diagnosis.
• Haemorrhoids (traditional sitz bath): Sitz baths with bark decoction were used to ease swelling and bleeding piles. The drying effect of tannins is the usual explanation. No controlled human trial supports it. Bleeding from the back passage should always be checked by a doctor.
• Diarrhoea (traditional internal use): Tannin-rich barks were widely taken for loose stools in Latin American folk medicine. High-tannin plants do bind gut contents, which may firm stools. For barbatimão itself, human evidence is essentially absent. Internal use also carries the most risk, so this use is the hardest to justify.

What are the side effects of Barbatimão?

• Stinging or burning when put on a raw wound
• Dry, tight or flaky skin where it is applied
• Brown staining of skin, cloth or dressings
• Itchy rash or contact allergy
• Nausea or stomach ache after taking it by mouth
• Constipation from the high tannin load
• Poorer uptake of iron from food and tablets
• Strain on the liver with heavy, long internal use

Good to know:

Used on intact or lightly broken skin, barbatimão is usually well tolerated. Stinging and dryness are the common complaints. Allergic rash is less common but does happen.

Taking the bark by mouth carries more risk. High-tannin plants can upset the stomach and block iron uptake. Heavy or long use has been linked with liver strain for tannin-rich plants in general.

Animal studies raise a real concern in pregnancy, which is why the avoid list below is firm. Stop use and seek advice if any reaction appears.

How much Barbatimão should you take?

• Recommended daily: This page gives no personal dose. What follows is only the kind of amount a label or study report carries. Brazilian wound creams and gels are commonly made with about 1 to 3 percent bark extract. Mouth rinses and washes use a weak, well-diluted bark decoction. Capsules of bark powder vary widely, and no safe long-term intake by mouth has been set. Strength differs between brands, so one product's amount does not transfer to another. If you are considering internal use, speak to a doctor or pharmacist first.
• Best time of day: Time of day does not matter much. Creams are usually applied after the wound is cleaned, often at a dressing change. Mouth rinses are usually used after brushing.
• With or without food: This mostly applies to capsules or teas taken by mouth. Tannins can irritate an empty stomach, so some people take them with food. Food and drink also bind tannins and may cut any effect. Keep tannin-rich products well apart from iron tablets.
• Time to effect: For skin use, any visible change in a small wound takes days. Studies of chronic wounds measured progress over two to six weeks. It may also do nothing for you. If there is no clear change in two weeks, it is not working and other care is needed.
• How long to take it: On the skin, barbatimão products are usually used for a short course while a wound heals. Studies have run for a few weeks, not months. No safe long-term period has been set for taking it by mouth. High tannin intake over a long run may upset the gut and cut iron uptake. If a wound is no better after about two weeks, stop and get it looked at.