Hydroxypropyl Methacrylate
AKA “Rocryl 410, 2-Propanediol, monomethacrylate, Methacrylic acid, monoester with 1, 2-propanediol”
Synthetic
Ingredient Facts
Hydroxypropyl methacrylate
AKA: Rocryl 410, 2-Propanediol, Monomethacrylate, Methacrylic acid, Monoester with 1, 2-propanediol
Synthetic · Anti-Aging · EWG: 4
Synthetic
Emollient
Anti-Aging
Occlusive
Skin Conditioner
Synthetic
Clean
Creates a lightweight, flexible layer on skin or hair that helps products stay put and improves their wear time throughout the day.
Solubility Limited solubility in water, sol in common organic solvents
Formula
C7H12O3
Mol. Weight
144.17
CAS #
27813-02-1
Form
Powder
State
Hydroxypropyl methacrylate appears as white liquid with a light unpleasant odor. May float or sink in water. (USCG, 1999)
See origin →
Functions
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Viscosity Controlling
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Anti-Aging
Targets fine lines, wrinkles, or loss of firmness. Works by boosting collagen, speeding cell turnover, or both.
Creates Protective Barrier
Traditional Use
A synthetic acrylic polymer precursor developed mid-20th century in industrial chemistry. Adapted for cosmetic use as a film-forming and texturizing agent in modern skincare and cosmetic products.
Skin Types
●all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Caution
Final Report on the Safety Assessment of Methacrylic Acid
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
C8-22 Alkyl Acrylates/Methacrylic Acid Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
Hydroxypropyl Methacrylate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Isopropylidenediphenyl Bisoxyhydroxypropyl Methacrylate
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)
PEG/PPG-5/2 Methacrylate/Methacrylic Acid Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
C8-22 Alkyl Acrylates/Methacrylic Acid Crosspolymer
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Hydroxypropyl Methacrylate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Isopropylidenediphenyl Bisoxyhydroxypropyl Methacrylate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Methacrylic Acid
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Methacrylic acid
Health Canada
Health Canada Cosmetic Ingredient Hotlist
Verified Feb 2026
Data: PubChem · CosIng · EWG · CIR