PEG-36 Castor Oil
AKA “Polyethylene Glycol 36 Castor Oil
Essential Oil
Ingredient Facts
Peg-36 castor oil
AKA: Polyethylene Glycol 36 Castor Oil
Essential Oil · Cleansing · EWG: 4
Plant-Derived Synthetic
Cleanser
Emulsifier
Plant Oil
Essential Oil
Clean
Derived from castor seeds, this gentle cleanser helps remove impurities while keeping moisture balanced in your formula. It also helps blend oil and water-based ingredients together seamlessly.
CAS #
61791-12-6
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
Removes Impurities
Mixes Oil & Water
Traditional Use
Polyethylene glycol-modified castor oil emulsifier developed for cosmetics, slightly higher polyethylene glycol ratio than PEG-33 variants for enhanced water solubility.
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