Acrylates/Steareth-20 Methacrylate Copolymer is a synthetic associative thickening and stabilizing polymer used to control viscosity and improve the texture and stability of emulsions and gels. It functions as a formulation aid rather than a skin-treatment active.
| Reported effect | How often | Notes |
|---|---|---|
Mild skin irritation | Rare | Occasional transient redness or stinging, typically formulation- or concentration-dependent. |
Allergic contact dermatitis | Very rare | Isolated sensitization reports; the polymer is generally considered low-risk for allergy. |
Eye irritation | Rare | Possible if products contact the eyes during application. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.