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Potassium Ethyl Ester of PVM/MA Copolymer
AKA “Potassium Ethylparaben, ethylparaben potassium, ETHYL P-HYDROXYBENZOATE POTASSIUM SALT, P-HYDROXYBENZOIC ACID ETHYL ESTER POTASSIUM SALT, BENZOIC ACID, ETHYL ESTER, POTASSIUM SALT (1:1)”
Ingredient
Ingredient Facts
Potassium ethyl ester of pvm/ma copolymer
AKA: Potassium Ethylparaben, Ethylparaben potassium, ETHYL P-HYDROXYBENZOATE POTASSIUM SALT, P-HYDROXYBENZOIC ACID ETHYL ESTER POTASSIUM SALT, BENZOIC ACID, POTASSIUM SALT (1:1)
Ingredient · Chelating · EWG: 4
Synthetic
Chelating Agent
Not Clean
Potassium salt of ethyl ester of PVM/MA copolymer
Formula
C9H9KO3
Mol. Weight
204.26
CAS #
36457-19-9
Form
Liquid
State
Liquid
See origin →
Functions
Chelating
Grabs onto metal ions in water that would destabilize the formula. Keeps your product from going bad or changing color.
Removes Metal Ions
Binds metal ions
Traditional Use
A modern synthetic polymer created in the late 20th century for use as a film-former and styling agent in hair and skincare products. Designed to replace natural resins with improved stability and consistency.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
Restricted By
CIR Safety Findings
medical-approval
all-shades-safe
Phototoxicity Concern
Concentration Guide
8.0%
0%11%
Reg. Limit
EU regulatory limit: 8.0%. 0,4% (as acid) for single ester 0,8% (as acid) for mixtures of esters Source: EU Cosmetics Regulation (EC) 1223/2009, Annex V (Preservatives), Entry 12. Dermal absorption: 0.1%. Source: CIR Safety Assessment (CIR Seq 746).
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
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
→
Benzyl Alcohol, Benzoic Acid, Sodium Benzoate
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
Final Report on the Safety Assessment of Benzyl Alcohol, Benzoic Acid, and Sodium Benzoate
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
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
→
Safety Assessment of Benzyl Alcohol, Benzoic Acid and its Salts, and Benzyl Benzoate
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
4-Hydroxybenzoic acid rescues multisystemic disease and perinatal lethality in a mouse model of mitochondrial disease.
Corral-Sarasa J, Martínez-Gálvez JM, González-García P, Wendling O, Jiménez-Sánchez L et al.
Cell reports, 2024
→
4-Hydroxybenzoic Acid
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Ethyl Ester of PVM/MA Copolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Potassium Ethyl Ester of PVM/MA Copolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Potassium Ethylparaben
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)
→
Benzoic acid and its derivatives as naturally occurring compounds in foods and as additives: Uses, exposure, and controversy.
Del Olmo A, Calzada J, Nuñez M
Critical reviews in food science and nutrition, 2017
→
Benzoic acid and its derivatives as naturally occurring compounds in foods and as additives: Uses, exposure, and controversy.
Del Olmo A, Calzada J, Nuñez M
Critical reviews in food science and nutrition, 2017
→
Benzoic acid and its derivatives as naturally occurring compounds in foods and as additives: Uses, exposure, and controversy.
Del Olmo A, Calzada J, Nuñez M
Critical reviews in food science and nutrition, 2017
→
4-Hydroxybenzoic Acid
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Benzoic Acid
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Ethyl Ester of PVM/MA Copolymer
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
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3-Imidazol-4-ylacrylic acid and its ethyl ester
Health Canada
Health Canada Cosmetic Ingredient Hotlist
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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
→
Safety Assessment of Benzyl Alcohol, Benzoic Acid and its...
Wilbur Johnson, Wilma F Bergfeld, Donald V Belsito, Ronald A Hill, Curtis D Klaassen, Daniel C Liebler + 5 more
International journal of toxicology, 2017
→
Safety Assessment of Benzyl Alcohol, Benzoic Acid and its...
Wilbur Johnson, Wilma F Bergfeld, Donald V Belsito, Ronald A Hill, Curtis D Klaassen, Daniel C Liebler + 5 more
International journal of toxicology, 2017
→
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR