Acrylic acid copolymer is a synthetic polymer used in cosmetic formulations as a thickening agent, stabilizer, and film-former to control viscosity and improve product texture. It is a formulation aid rather than a therapeutic active.
| Reported effect | How often | Notes |
|---|---|---|
Mild skin irritation | Rare | Occasional transient redness or stinging, often linked to residual monomers or other formula components. |
Allergic contact dermatitis | Very rare | Isolated case reports of sensitization to acrylate-based polymers. |
Eye irritation | Rare | Possible mild irritation if the product contacts the eyes. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.