Polyacrylate-1 Crosspolymer
AKA “Polyacrylate-1 Crosspolymer, PAA-1
Hair Conditioning
Ingredient Facts
Polyacrylate-1 crosspolymer
AKA: PAA-1
Hair Conditioning · Film Forming · EWG: 4
Synthetic
Occlusive
Skin Conditioner
Hair Care
Not Clean
Polyacrylate-1 Crosspolymer is a copolymer of one or more simple esters of acrylic or methacrylic acid, C1-4 dialkylamino C1-6 alkyl methacrylate, PEG/PPG-30/5 allyl ether, PEG 20-25 C10-30 alkyl ether methacrylate, hydroxy C2-6 alkyl methacrylate crosslinked with ethylene glycol dimethacrylate
CAS #
-
Form
Liquid
State
Solid
See origin →
Functions
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Hair Fixing
Viscosity Controlling
Creates Protective Barrier
Conditions Hair
Controls Viscosity
Traditional Use
A synthetic crosslinked polymer developed for cosmetics as a thickener and suspending agent, with no traditional or historical use prior to modern cosmetic chemistry.
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