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Sorbeth-30 Tetraisostearate
AKA “Sorbitan Polysorbate Ester”
Synthetic
Ingredient Facts
Sorbeth-30 tetraisostearate
AKA: Sorbitan Polysorbate Ester
Synthetic · Cleansing · EWG: 4
Plant-Derived
Cleanser
Emulsifier
Synthetic
Clean
Polyethylene Glycol (30) Sorbitol Tetraisostearate Science: Origin: Botanic/Natural | Functions: Surfactant - Cleansing, Surfactant - Emulsifying Safety Ratings: CIR: Safe as used
Effective at 0.7%
See origin →
Functions
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Cleansing Surfactant
Emulsifier
Removes Impurities
Mixes Oil & Water
Traditional Use
A modern synthetic emulsifier synthesized for cosmetics. Designed to stabilize highly concentrated oil-based formulations with water.
Skin Types
●all-skin-types
Best For
Dryness
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe w/Qualifications
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Concentration Guide
0.5%
0.9%
0%1%
Effective Range
CIR reported use: 0.5-0.9
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Feb 2026
Data: CosIng · EWG · CIR