undefined 1
undefined 2
undefined 3
undefined 4
undefined 5
undefined 6
undefined 7
Juglans regia (Walnut) seed oil
AKA “Walnut Seed Oil”
Oil
Ingredient Facts
Juglans regia (Walnut) seed oil
AKA: Walnut Seed Oil
Oil · Skin Conditioning · EWG: 3
Plant-Derived
Skin Conditioner
Not Clean
Juglans Regia (Walnut) Seed Oil is a cosmetic ingredient used as skin conditioning. Assessed as safe by the CIR.
Family
Juglandaceae (Walnut family)
Plant Part
Seed
Lifeform
Tree
Climate
Temperate
CAS #
8024-09-7 / 84012-43-1
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.
Conditions Skin
Antioxidant Protection
Locks In Moisture
Softens & Smooths
Traditional Use
Used in traditional European and Asian medicine for centuries as a nutritive oil for skin health; walnut has been valued since ancient Roman times for both culinary and cosmetic applications, particularly for its emollient properties.
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Allergen Warning
⚠️ Tree Nut (Walnut)
EWG
3
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: Kew POWO · CosIng · EWG · CIR