PEG-30 Hydrogenated Castor Oil Triisostearate
AKA “Hydrogenated Castor Oil Triisostearate Ethoxylate
Essential Oil
Ingredient Facts
Peg-30 hydrogenated castor oil triisostearate
AKA: Hydrogenated Castor Oil Triisostearate Ethoxylate
Essential Oil · Emulsifying · EWG: 4
Plant-Derived Synthetic
Cleanser
Emulsifier
Plant Oil
Essential Oil
Clean
Castor oil (Ricinus communis), hydrogenated, ethoxylated, triisooctadecanoate (30 mol EO average molar ratio) Science: Origin: Botanic/Natural | Process: Catalytic Hydrogenation | Functions: Surfactant - Emulsifying, Viscosity Controlling Safety Ratings: CIR: Safe as used
CAS #
61788-85-0
Form
Oil
See origin →
Functions
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Viscosity Controlling
Emulsifier
Controls Viscosity
Antioxidant Protection
Locks In Moisture
Reduces Inflammation
Mixes oil and water
Controls product thickness
Traditional Use
A synthetic emulsifier created by combining hydrogenated castor oil—a traditional emollient used for millennia in skincare—with polyethylene glycol and isostearic acid to enhance texture and water-binding properties in modern cosmetics.
Skin Types
all-skin-types
Best For
General
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
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR