Bertholletia Excelsa Brazil Nut Seed Oil
What is Bertholletia Excelsa Brazil Nut Seed Oil?
Bertholletia Excelsa Brazil Nut Seed Oil is a rich, emollient oil extracted from the seeds of the Bertholletia excelsa tree, native to the Amazon rainforest. It is packed with essential fatty acids like oleic and linoleic acids, along with high levels of selenium, vitamin E, and antioxidants, making it a nourishing ingredient in skincare formulations. Commonly used in moisturizers, serums, and hair care products for its deeply hydrating and protective properties.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Emollient
Softens and smooths skin by filling in surface roughness and improving slip; can also help reduce moisture loss when paired with occlusives and film formers.
Refatting
Replenishes lipids removed during cleansing to improve mildness and reduce tightness, leaving skin or hair feeling less stripped after rinse-off use.
Skin protecting
Forms a barrier to protect skin from external irritants.
Skin conditioning agent
Maintains skin softness, smoothness, and flexibility.
Antioxidant
Slows oxidation of oils, fragrances, and sensitive actives to improve shelf life and reduce rancidity or color change; sometimes also supports skin protection from oxidative stress.