El árbol chileno con el que se lavaban los mapuches — hoy está dentro de tu vacuna

You washed your hair with it 500 years ago. Today, it travels inside your body every time you get vaccinated. An endemic Chilean tree, Mapuche knowledge disregarded for centuries, and one of the most coveted molecules in modern immunology. Watch until the end: what science found in that lather changed world medicine forever. In this video, we reconstruct the story of the quillay, the Chilean tree whose name in Mapudungun, cüllay, simply means "to wash." For centuries, the Mapuche people used the bark of Quillaja saponaria as soap, shampoo, and a remedy for coughs and skin conditions, thanks to substances called saponins that lather with water. What seemed like a simple field remedy, another chapter in the story of forgotten medicinal plants of the Americas, concealed one of the most potent molecules ever identified: the QS-21 saponin, now used as an adjuvant in some of the most important vaccines on the planet, from shingles to the first malaria vaccines in history. We explore Mapuche ethnobotany, the colonial disdain for traditional Indigenous medicine, the scientific rediscovery of the bark, and the current sustainability dilemma threatening centuries-old trees. A story where ancestral knowledge, natural remedies, and cutting-edge biotechnology converge. If you're interested in these stories of buried botanical knowledge resurfacing, subscribe, like, and tell us in the comments if you were already familiar with the quillay tree. ════════════════════════════════════════ ⚠️ IMPORTANT NOTICE This video is for educational and entertainment purposes only. The information presented about quillay (Quillaja saponaria) is not a substitute for medical consultation, diagnosis, or treatment. Always consult a doctor or other qualified healthcare professional before using plants for medicinal purposes or as a dietary supplement. Consuming wild plants requires accurate identification—there is a risk of confusion with toxic species. All information has been carefully researched, but its completeness and absence of errors are not guaranteed. ════════════════════════════════════════ 📚 SOURCES AND SUPPLEMENTARY BIBLIOGRAPHY • Kensil C. R. et al., Separation and characterization of adjuvant saponins from Quillaja saponaria, including the QS-21 fraction, Journal of Immunology, 1991 • Research on the immunoadjuvant activity of quillaja saponins published in Vaccine, 1996-2018 • Studies on the phytochemistry of triterpene saponins Quillaja saponaria, Phytochemistry, 1990-2010 • Ragupathi G., Gardner J. R. et al., review on QS-21 as a vaccine adjuvant, Expert Review of Vaccines, 2011 • San Martín R. and Briones R., research on industrial uses and sustainability of Chilean quillay, Economic Botany, 1999 • World Health Organization, documents on malaria vaccines and saponin-based adjuvants • University of Chile and Pontifical Catholic University of Chile, studies on ethnobotany and sustainable use of Quillaja saponaria • Wilson Engdahl, Aldunate and other authors, ethnobotanical records of the Mapuche medicinal use of native Chilean plants • Fernando Cabieses and reference works on Andean and South American ethnobotany • Hoffmann A., Wild Flora of Chile, a botanical reference work on native species #Herbalism #MedicinalPlants #NaturalMedicine #AncestralKnowledge #Ethnobotany #ForgottenPlants #TraditionalMedicine #Quillay #Mapuche #Vaccines