Sodium Ricinoleate
AKA “5323-95-5, Colidosan, Sodium ricinate, Soricin, Ricinoleic acid, sodium salt, UNII-OOO64813BX, Ricinoleic acid salt, CCRIS 5930, OOO64813BX”
Surfactant
Ingredient Facts
Sodium ricinoleate
AKA: 5323-95-5, Colidosan, Sodium ricinate, Soricin, Ricinoleic acid, Sodium salt, UNII-OOO64813BX, Ricinoleic acid salt, CCRIS 5930, OOO64813BX
Surfactant · Cleansing · EWG: 1
Synthetic
Cleanser
Emulsifier
Plant Oil
Clean
Ricinoleic acid, sodium salt is a white powder. (NTP, 1992)
Solubility Soluble (NTP, 1992)
Formula
C18H33NaO3
Mol. Weight
320.40
CAS #
5323-95-5
State
Ricinoleic acid, sodium salt is a white powder. (NTP, 1992)
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.
Surfactant Emulsifying
Strengthens Barrier
Removes dirt and impurities
Mixes oil and water
Traditional Use
The sodium salt of ricinoleic acid from castor oil. Used historically as a natural soap and cleanser, and later incorporated into modern cosmetic formulations as an emulsifier.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Effects of Sodium Salts of Fatty Acids and Their Derivatives on Skin Permeation of Cromolyn Sodium.
Akinbote OE, Verana G, Dandekar AA, Tijani AO, Mishra D et al.
AAPS PharmSciTech, 2023
Effects of Sodium Salts of Fatty Acids and Their Derivatives on Skin Permeation of Cromolyn Sodium.
Akinbote OE, Verana G, Dandekar AA, Tijani AO, Mishra D et al.
AAPS PharmSciTech, 2023
Toxicology and pharmacology of sodium ricinoleate.
Burdock GA, Carabin IG, Griffiths JC
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 2006
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
Ricinoleic Acid
European Commission
EU Cosmetic Ingredient Database (CosIng)
Sodium Ricinoleate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Ricinoleic Acid
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Sodium Ricinoleate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
SODIUM SALT
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