Potassium Ricinoleate
AKA “7492-30-0, Caswell No. 701A, Ricinoleic acid, monopotassium salt, UNII-79N4H930TT, DTXSID5042322, HSDB 2167, 79N4H930TT, EINECS 231-314-8, EPA Pesticide Chemical Code 079023
Surfactant
Ingredient Facts
Potassium ricinoleate
AKA: 7492-30-0, Caswell No. 701A, Ricinoleic acid, Monopotassium salt, UNII-79N4H930TT, DTXSID5042322, HSDB 2167, 79N4H930TT, EINECS 231-314-8, EPA Pesticide Chemical Code 079023
Surfactant · Cleansing · EWG: 1
Synthetic
Cleanser
Emulsifier
Plant Oil
Clean
Potassium ricinoleate
Solubility Soluble in water
Formula
C18H33KO3
Mol. Weight
336.60
CAS #
7492-30-0
Form
Liquid
State
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.
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.
Removes Impurities
Cleansing Surfactant
Emulsifier
Mixes Oil & Water
Traditional Use
A potassium salt of ricinoleic acid from castor oil, used since the early 20th century as an emulsifier and soap. Castor oil itself has ancient use in traditional medicine and skincare.
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Final Report on the Safety Assessment of Ricinus Communis (Castor) Seed Oil, Hydrogenated Castor Oil, Glyceryl Ricinoleate, Glyceryl Ricinoleate SE, Ricinoleic Acid, Potassium Ricinoleate, Sodium Rici
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Potassium Ricinoleate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Ricinoleic Acid
European Commission
EU Cosmetic Ingredient Database (CosIng)
Potassium Ricinoleate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Ricinoleic Acid
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Differentiation of Malassezia species: selectivity of cremophor EL, castor oil and ricinoleic acid for M. furfur.
Mayser P, Haze P, Papavassilis C, Pickel M, Gruender K et al.
The British journal of dermatology, 1997
Differentiation of Malassezia species: selectivity of cremophor EL, castor oil and ricinoleic acid for M. furfur.
Mayser P, Haze P, Papavassilis C, Pickel M, Gruender K et al.
The British journal of dermatology, 1997
Differentiation of Malassezia species: selectivity of cremophor EL, castor oil and ricinoleic acid for M. furfur.
Mayser P, Haze P, Papavassilis C, Pickel M, Gruender K et al.
The British journal of dermatology, 1997
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR