Potassium Castorate
AKA “Potassium castor oil, Potassium ricinoleate
Synthetic
Ingredient Facts
Potassium castorate
AKA: Potassium castor oil, Potassium ricinoleate
Synthetic · Cleansing · EWG: 4
Plant-Derived Synthetic
Cleanser
Emulsifier
Plant Oil
Synthetic
Clean
A gentle plant-based cleanser derived from castor oil that effectively removes dirt and oil without stripping skin. Naturally derived and mild enough for daily use.
CAS #
8013-05-6
Form
Liquid
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
Removes Impurities
Traditional Use
Synthetic ester derived from castor oil, which has been used in traditional medicine and cosmetics for millennia in India and Africa. The potassium salt was developed in the 20th century as a modern emulsifier and conditioning agent.
Skin Types
all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe
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