Hydrogenated Castor Oil PEG-8 Esters
AKA: PEGylated Hydrogenated Castor Oil
Plant-Derived
Skin Conditioner
Plant Oil
Not Clean
Ricinus communis oil, hydrogenated, reaction products with .alpha.-hydro-.omega.-hydroxypoly(oxy-1,2-ethanediyl) (8 mol EO average molar ratio)
Family
Euphorbiaceae (Spurge family)
Plant Part
Seed
CAS #
736150-63-3
Form
Oil
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Viscosity Controlling
Locks in moisture
Traditional Use
Castor oil has traditional use in folk medicine and skincare across multiple cultures. This ingredient combines hydrogenated castor oil with polyethylene glycol, a synthetic polymer developed in the 20th century, to create a water-soluble emulsifier.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Agencies
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR