Glycine soja (Soybean) oil unsaponifiables
AKA: Soybean Oil Unsaponifiables
Allergen Warning
⚠️ Soy
Plant-Derived
Emollient
Skin Conditioner
Amino Acid
Clean
Glycine Soja (Soybean) Oil Unsaponifiables is a cosmetic ingredient used as emollient, skin conditioning. Rated low hazard by EWG. Assessed as safe by the CIR.
Effective at 47.5%
Family
Fabaceae (Legume family)
Plant Part
Bean
Lifeform
Climber
Climate
Temperate
CAS #
91770-67-1
Form
Oil
Functions
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
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.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Concentration Guide
1e-05%
95.0%
0%100%
Reported use
CIR reported use: 1-17 | 0.00001-0.5 | 0.1-2 | 0.002-0.2 | 0.0002-95
Regulatory Agencies
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: Kew POWO · CosIng · EWG · CIR