Glycine soja (Soybean) oil unsaponifiables
AKA “Soybean Oil”
Essential Oil
Ingredient Facts
Glycine soja (Soybean) oil unsaponifiables
AKA: Soybean Oil
Essential Oil · Emollient · EWG: 4
Plant-Derived Synthetic
Emollient
Skin Conditioner
Amino Acid
Essential Oil
Clean
Science: Origin: Botanic/Natural ⚠ Allergen Alert (Soy): Derived from a common allergen source. May cause reactions in sensitive individuals. Safety Ratings: CIR: Safe as used
Effective at 47.5%
CAS #
91770-67-1
Form
Oil
See origin →
Functions
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
Soy has ancient roots in Asian traditional medicine and agriculture. The unsaponifiable fraction (plant sterols and other lipid components) was isolated and studied in the 20th century for its potential anti-inflammatory and skin-barrier-supporting properties.
Skin Types
●all-skin-types
Best For
Dryness
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
Allergen Warning
⚠️ Soy
EWG
4
CIR
Safe
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Concentration Guide
1e-05%
95.0%
0%100%
Effective Range
CIR reported use: 1-17 | 0.00001-0.5 | 0.1-2 | 0.002-0.2 | 0.0002-95
Regulatory Agencies
Verified Feb 2026
Data: Kew POWO · CosIng · EWG · CIR