PEG-8 Hydrogenated Castor Oil
AKA “Polyethylene Glycol 8 Hydrogenated Castor Oil, PEG-8 Castor Oil”
Carrier Oil
Ingredient Facts
Peg-8 hydrogenated castor oil
AKA: Polyethylene Glycol 8 Hydrogenated Castor Oil, PEG-8 Castor Oil
Carrier Oil · Cleansing · EWG: 2
Plant-Derived
Cleanser
Emulsifier
Plant Oil
Clean
Castor oil (Ricinus communis), hydrogenated, ethoxylated (8 mol EO average molar ratio)
Family
Euphorbiaceae (Spurge family)
Plant Part
Seed
CAS #
61788-85-0
Form
Oil
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
Reduces Inflammation
Locks In Moisture
Fights Bacteria
Removes Impurities
Mixes Oil & Water
Traditional Use
Castor oil has been used medicinally and cosmetically for thousands of years in India and Egypt; this derivative was developed in the 20th century by hydrogenating and pegylating castor oil to create a more stable, water-compatible emulsifier.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
2
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR