Acrylates/C5-8 Alkyl Acrylate Copolymer

AKA: Film Forming Polymer
Synthetic
Occlusive
Emulsifier
Not Clean
Acrylates/C5-8 Alkyl Acrylate Copolymer is the copolymer of C5-8 alkyl acrylate and one or more monomers of acrylic acid, methacrylic acid, or one of their simple esters
CAS #
-
State
Solid
Functions
Emulsion Stabilising
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Viscosity Controlling
Stabilizes Emulsion
Creates Protective Barrier
Controls Viscosity
Creates protective layer
Keeps product blended
Controls product thickness
Traditional Use
A synthetic polymer developed for cosmetic applications. Functions as a thickener and suspending agent in gels and lotions.
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
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing
🛡️Safety-assessed1 review
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR