C4-18 Alkyl Methacrylate/Methacryloyloxyethyl Phosphorylcholine Copolymer
AKA “Phosphorylcholine Copolymer, Film-forming Polymer
Humectant
Ingredient Facts
C4-18 alkyl methacrylate/methacryloyloxyethyl phosphorylcholine copolymer
AKA: Film-forming Polymer
Humectant · Humectant · EWG: 4
Synthetic
Humectant
Not Clean
C4-18 Alkyl Methacrylate/Methacryloyloxyethyl Phosphorylcholine Copolymer is a copolymer of Methacryloyloxyethyl Phosphorylcholine and C4-18 alkyl methacrylate.
CAS #
125275-25-4
Form
Liquid
State
Solid
See origin →
Functions
Humectant
A moisture magnet. Pulls water from the air and deeper skin layers up to the surface to keep skin plump and hydrated.
Locks In Moisture
Traditional Use
A modern synthetic polymer developed for advanced skincare formulations to provide film-forming, water-resistant, and biocompatible properties mimicking natural skin conditioning.
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: CosIng · EWG · CIR