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PEG-4 Dimethacrylate
AKA “Tetraethylene glycol dimethacrylate, 109-17-1, TETRAETHYLENEGLYCOL DIMETHACRYLATE, Te EGDMA, Tetraethylene glycol, dimethacrylate, TGM 4, SR 209, Methacrylic acid, oxybis(ethyleneoxyethylene) ester, 2-Propenoic acid, 2-methyl-, oxybis(2, 1-ethanediyloxy-2, 1-ethanediyl) ester, CT038EQF54”
Ingredient
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Ingredient Facts
Peg-4 dimethacrylate
AKA: Tetraethylene glycol dimethacrylate, 109-17-1, TETRAETHYLENEGLYCOL DIMETHACRYLATE, Te EGDMA, Tetraethylene glycol, TGM 4, SR 209, Methacrylic acid, Oxybis(ethyleneoxyethylene) ester, 2-Propenoic acid, 2-methyl-, Oxybis(2, 1-ethanediyloxy-2, 1-ethanediyl) ester, CT038EQF54
Ingredient · Film Forming · EWG: 4
Synthetic
Occlusive
Not Clean
Poly(oxy-1,2-ethanediyl), .alpha.-(2-methyl-1-oxo-2-propenyl-omega-(2-methyl-1-oxo-2-propenyl)oxy- (4 mol EO average molar ratio)
Formula
C16H26O7
Mol. Weight
330.37
CAS #
109-17-1
Form
Liquid
State
Liquid
See origin →
Functions
Binding
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Holds Formula Together
Creates Protective Barrier
Creates protective layer
Holds ingredients together
Traditional Use
Synthetic polymer developed in the cosmetics industry as a film-forming agent and texture modifier, created to improve the spreadability and staying power of cosmetic products.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Caution
EWG
4
CIR
Safe as used
Pregnancy
Caution
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Final Report of the Cosmetic Ingredient Review Expert Panel Safety Assessment of Polymethyl Methacrylate (PMMA), Methyl Methacrylate Crosspolymer and Methyl Methacrylate/Glycol Dimethacrylate Crosspol
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
Final Report on the Safety Assessment of 2-Methyl-5-Hydroxyethylaminophenol
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
Final Report on the Safety Assessment of Methacrylic Acid
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
2-Methyl-5-Hydroxyethylaminophenol
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Acrylates/PEG-4 Dimethacrylate Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Butyl Acrylate/Glycol Dimethacrylate Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Butyl Acrylate/Isopropylacrylamide/PEG-18 Dimethacrylate Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
C8-22 Alkyl Acrylates/Methacrylic Acid Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Glycol Dimethacrylate Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Glycol Dimethacrylate/Vinyl Alcohol Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Lauryl Methacrylate/Glycol Dimethacrylate Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Methacrylic Acid
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Methacrylic Acid/Styrene/VP Copolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Methyl Methacrylate/Glycol Dimethacrylate Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
PEG-4 Dimethacrylate
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
PEG/PPG-5/2 Methacrylate/Methacrylic Acid Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Phosphorylcholine Glycol Methacrylate/PEG-10 Dimethacrylate Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Triethylene Glycol Dimethacrylate
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
2-Methyl-1-Phenyl-2-Propanol
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
2-Methyl-5-Hydroxyethylaminophenol
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
C8-22 Alkyl Acrylates/Methacrylic Acid Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Glycol Dimethacrylate Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Lauryl Methacrylate/Glycol Dimethacrylate Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Methacrylic Acid
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Methyl Methacrylate/Glycol Dimethacrylate Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
2-Methyl-m-phenylenediamine
Health Canada
Health Canada Cosmetic Ingredient Hotlist
→
Methacrylic acid
Health Canada
Health Canada Cosmetic Ingredient Hotlist
→
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR