Bertholletia Excelsa Extract
Also known as: Bertholletia excelsa
From the Brazil nut tree
EWG Safety Score
What Is Bertholletia Excelsa Extract?
Bertholletia excelsa extract comes from a plant more commonly known as the Brazil nut. Extracts from this plant can come from its bark, seeds, or stems.\n\nWhile there isn’t a great depth of research at this point on Brazil nut extracts uses in cosmetics, what we do know about it is promising.\n\nAs with most other plant-derived extracts, it contains skin-beneficial antioxidant compounds, particularly polyphenols. One study found that the stem-bark extract from Bertholletia excelsa stimulates collagen production, making it a valuable ally in the fight against visible signs of aging.\n\nBertholletia excelsa extract is most often prepared for cosmetics in a base of water and glycerin. In this form, use levels of the extract range from 0.25–2.5%, with clinical studies showing impressive benefits beginning at a 1% use level.
Benefits for Your Skin
Clinical Evidence & References
Published Research
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Nutrition Reviews, February 2025, pages e471–e485 Nutrition Reviews, 2025
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International Journal of Cosmetic Science, October 2024, pages 643-656 International Journal of Cosmetic Science, 2024
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Trends in Sciences, August 2023, pages 1-15 Trends in Sciences, 2023
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Boletín Latinoamericano y del Caribe de Plantas Medicinales y Aromáticas, July 2023, pages 472-487 Boletín Latinoamericano y del Caribe de Plantas Medicinales y Aromáticas, 2023
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