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Fournisseur exclusif des produits utilisés parla Fondation Beljanski pour la recherche scientifique
Beljanski® ingredient
Pao pereira (Geissospermum laeve, historically known as Geissospermum vellosii) is a South American tree whose bark naturally contains distinctive alkaloids, including flavopereirine.
Molecular biologist Mirko Beljanski, PhD investigated Pao pereira extensively and developed a specific method of extraction and standardization that remains at the heart of Maison Beljanski’s Pao pereira products today.
Also spelled Pau pereira and sometimes sold simply as “Pao pereira herb,” the Beljanski® extract is the primary botanical in Pao V® and Pao V “FM”®, and a component of Womabel®, Prostabel® and OnKobel-Pro®.
History
Pao pereira—also spelled Pau-pereira—has been documented in Brazilian medical and botanical literature since the nineteenth century.
In 1848, Ezequiel Corrêa dos Santos presented Monographia do Geissospermum vellosii vulgo Pao Pereira to the Faculty of Medicine of Rio de Janeiro.
More than a century later, Mirko Beljanski, PhD turned his attention to this remarkable botanical and its naturally occurring alkaloids.
Uses
Most people who look up Pao pereira want to know what it is used for. There are three different answers, and it helps to keep them apart.
In Brazil and neighbouring countries the bark has been prepared as a decoction for centuries. Ezequiel Corrêa dos Santos documented it in his 1848 thesis, and a 1942 Brazilian review listed Pao pereira among the ten most useful trees native to the country.
Maison Beljanski prepares a standardized Pao pereira bark extract to the specifications developed through Mirko Beljanski’s work, tested for flavopereirine. It is the main botanical in Pao V® and Pao V “FM”®, and is combined with other Beljanski® botanicals in Womabel®, Prostabel® and OnKobel-Pro®. Suggested use is printed on each label.*
The Beljanski Foundation, a nonprofit, has supported laboratory and preclinical studies of the Pao pereira extract at universities including Columbia University and the University of Kansas Medical Center. That research concerns the extract under defined experimental conditions, not any finished product.
If you are considering a Pao pereira supplement, talk to a healthcare practitioner first, especially if you are pregnant, nursing, taking medication or have a medical condition.
flavopereirineBeta-carboline alkaloid · Pao pereira bark
Flavopereirine is a naturally occurring beta-carboline alkaloid found in Pao pereira bark.
Mirko Beljanski identified flavopereirine as an important component of Pao pereira and investigated it extensively as part of his work with the botanical.
Today, flavopereirine content is one of the markers Maison Beljanski uses to evaluate the identity and consistency of its Pao pereira extracts.
Independent testing · 2026
The words “Pao pereira” on a label do not necessarily tell you what is actually in the extract.
In 2026, The Beljanski Foundation purchased commercially available Pao pereira products at different price points and commissioned independent laboratory testing of their flavopereirine content by HPLC.
Flavopereirine was not detected in any of the five competitor samples. Pao V® tested at 850 ppm of flavopereirine and Pao V “FM”® at 1,144 ppm.
| Product | Brand · lot | Flavopereirine |
|---|---|---|
| Pao V “FM”® | Maison Beljanski · lot 11AU6CO1 | 1,144 ppm |
| Pao V® | Maison Beljanski · lot 10CU5E01 | 850 ppm |
| Pao Pereira Graviola | Welbuda · lot MI/WPAPE18C05/1-100 | ND |
| PP40 | SuperSmart · lot L14643 | ND |
| Pau D’Arco Astragalus | Vinatura · lot AS052124-1 | ND |
| Pao Pereira Extract | Florida Herbal Pharma · lot X0037DBHE1 | ND |
| Pau Pereira (Geissospermum Vellosii) | Rain Forest Pharma · lot 0140426 | ND |
Rather than relying solely on the botanical name, Maison Beljanski pays particular attention to the botanical species, extraction process, chemical profile and independent testing of its Pao pereira.
Quality
Geissospermum laeve / Geissospermum vellosii
Prepared according to specifications inspired by the methods developed through Mirko Beljanski’s work.
Measured as an important marker of the extract’s botanical profile and consistency.
Beljanski® products are tested by an independent third-party laboratory before release by Quality Control.
Carefully sourced in South America with attention to responsible harvesting practices.
The bark of Pao pereira naturally sheds and regenerates, allowing it to be collected without cutting down the tree.
This natural renewal makes responsible harvesting possible while preserving the tree for future growth.
Beljanski® products
Pao Pereira
Maison Beljanski’s signature Pao pereira extract in a stand-alone formula.
Pao Pereira + Rauwolfia Vomitoria + OnkoTea®
A three-botanical formula designed specifically for women’s wellness.*
Pao Pereira + Rauwolfia Vomitoria
A botanical formula designed specifically for men’s wellness.*
Pao Pereira + Quassia Amara
A distinctive combination of two botanical extracts.
Professional Formula
Available through qualified healthcare professionals.
*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.
Pao pereira is a South American tree in the Apocynaceae family. Its bark contains naturally occurring alkaloids, including flavopereirine, and has a long history of traditional use.
Traditionally, the bark has been prepared as a decoction in South America. Today it is used as a standardized bark extract in Beljanski® dietary supplements such as Pao V®, and as a research material in university laboratory studies. Suggested use for each supplement is given on its label.
No. They are different trees. Pao pereira (Geissospermum laeve, also spelled Pau pereira) belongs to the Apocynaceae family. Pau d’arco (Handroanthus impetiginosus, formerly Tabebuia) belongs to the Bignoniaceae family. Beljanski® products contain Pao pereira, not Pau d’arco.
Yes. The botanical has been known historically as Geissospermum vellosii. Current botanical sources also identify it as Geissospermum laeve. Both names therefore appear in scientific and botanical literature.
Flavopereirine is a naturally occurring beta-carboline alkaloid found in Pao pereira. Maison Beljanski uses flavopereirine content as one of the markers for evaluating the botanical profile and consistency of its Pao pereira extracts.
No. Products can differ in botanical identity, extraction method and chemical profile. In independent HPLC testing commissioned by The Beljanski Foundation in 2026, flavopereirine was not detected in any of five competitor products sold as Pao pereira, while Pao V® and Pao V “FM”® tested at 850 and 1,144 ppm.
Beljanski® products undergo independent third-party laboratory testing before being released by Quality Control, including HPLC analysis of flavopereirine content.
Follow the suggested use on the product label. Consult a healthcare practitioner before use if you are pregnant, nursing, have a medical condition or are taking prescription medication. Beljanski® product labels also advise not taking silica at the same time as Pao pereira.
Maison Beljanski sells its Pao pereira extract directly at maisonbeljanski.com in Pao V®, Pao V “FM”®, Womabel® and Prostabel®. OnKobel-Pro® is available through qualified healthcare professionals.
Beyond Maison Beljanski
Want to learn more about Pao pereira beyond Maison Beljanski? These independent botanical and medical resources provide additional information.
International botanical reference for the current taxonomy of Pao pereira, recognizing Geissospermum laeve as the accepted name and Geissospermum vellosii as a synonym.
View World Flora Online worldfloraonline.orgPhytotherapyIndependent phytotherapy reference documenting Pao pereira’s botanical identity, traditional use and naturally occurring alkaloids, including flavopereirine.
View Wikiphyto wikiphyto.orgMedical literatureMSK’s independent About Herbs database provides information for patients and healthcare professionals about Pao pereira, its constituents and the published scientific literature.
View Memorial Sloan Kettering mskcc.orgHistorical provenanceExplore the historical and botanical record of Pao pereira, beginning with the 1848 Brazilian medical thesis of Ezequiel Corrêa dos Santos.
Explore the Pao pereira monograph PDF
Mirko Beljanski’s investigation of Pao pereira was part of a scientific career spanning nearly five decades and 133 scientific publications.
His work on DNA, RNA and naturally occurring compounds ultimately led him to develop the distinctive botanical extracts that inspired today’s Beljanski® products.
*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.
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