Bertholletia excelsa seed oil
AKA “Brazil Nut Oil, Bertholletia Excelsa Oil
Oil
Ingredient Facts
Bertholletia excelsa seed oil
AKA: Brazil Nut Oil, Bertholletia Excelsa Oil
Oil · Emollient · EWG: 4
Plant-Derived
Emollient
Skin Conditioner
Not Clean
Bertholletia Excelsa Seed Oil is the fixed oil expressed from the nuts of the Bertholletia excelsa, Lecythidaceae
Family
Lecythidaceae (Brazil nut family)
Plant Part
Seed
Lifeform
Tree
Climate
Wet tropical
CAS #
356065-50-4
Form
Oil
See origin →
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Locks In Moisture
Traditional Use
The Brazil nut tree has been used by indigenous Amazonian peoples for centuries as a food source and traditional remedy. The oil extracted from Brazil nuts is rich in selenium and has been traditionally valued for nutritional and skin health benefits in indigenous South American medicine.
Skin Types
all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Allergen Warning
⚠️ Tree Nut (Brazil Nut)
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: Kew POWO · CosIng · EWG · CIR