Ethyl Ricinoleate
AKA “UNII-G8Y3BN2GRW, Ricinoleic acid, ethyl ester, 9-Octadecenoic acid, (9Z, EINECS 259-462-9, RICINOLEATE D'ETHYLE”
Fatty Acid
Ingredient Facts
Ethyl ricinoleate
AKA: UNII-G8Y3BN2GRW, Ricinoleic acid, Ethyl ester, 9-Octadecenoic acid, (9Z, EINECS 259-462-9, RICINOLEATE D'ETHYLE
Fatty Acid · Perfuming · EWG: 4
Synthetic
Fragrance
Skin Conditioner
Plant Oil
Fatty Acid
Clean
A lightweight oil derived from castor bean extract that conditions skin and adds a subtle, pleasant scent to the formula.
Formula
C20H38O3
Mol. Weight
326.50
CAS #
55066-53-0
Form
Liquid
See origin →
Functions
Perfuming
Added for scent. Can be natural or synthetic. Common irritant and allergen — one of the top reasons people react to products.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Locks in moisture
Traditional Use
A synthetic ester derived from ricinoleic acid found in castor oil. Created in the 20th century to provide the conditioning benefits of castor oil in a more stable, lighter-weight form.
Skin Types
●all-skin-types
Best For
Dryness
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
RIFM fragrance ingredient safety assessment, pentanedioic acid, 1,5-dimethyl ester, CAS Registry Number 1119-40-0.
Api AM, Belsito D, Botelho D, Browne D, Bruze M et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 2018
Final Report on the Safety Assessment of Ethyl Ester of PVM/MA Copolymer and Butyl Ester of PVM/MA Copolymer
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
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
Ethyl Ester of PVM/MA Copolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
Ethyl Ricinoleate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Methyl Ricinoleate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Potassium Ethyl Ester of PVM/MA Copolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
Ricinoleic Acid
European Commission
EU Cosmetic Ingredient Database (CosIng)
Shea Butter Ethyl Esters
European Commission
EU Cosmetic Ingredient Database (CosIng)
Silybum marianum ethyl ester
European Commission
EU Cosmetic Ingredient Database (CosIng)
Ethyl Ester of PVM/MA Copolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Ricinoleic Acid
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Shea Butter Ethyl Esters
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Detection of fatty acid ethyl esters in skin surface lipids as biomarkers of ethanol consumption in alcoholics, social drinkers, light drinkers, and t
González-Illán F, Ojeda-Torres G, Díaz-Vázquez LM, Rosario O
Journal of analytical toxicology, 2011
3-Imidazol-4-ylacrylic acid and its ethyl ester
Health Canada
Health Canada Cosmetic Ingredient Hotlist
Synthesis of mixed esters of ascorbic acid using methyl esters of palm and soybean oils.
Hsieh HJ, Chen JW, Giridhar R, Wu WT
Preparative biochemistry & biotechnology, 2005
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 Feb 2026
Data: PubChem · CosIng · EWG · CIR