Acrylates Crosspolymer-4 is a synthetic cross-linked acrylic polymer used in cosmetic formulations as a thickener, stabilizer, and film former to improve texture and sensory feel. It is a formulation aid rather than a biologically active treatment ingredient.
| Reported effect | How often | Notes |
|---|---|---|
Mild skin irritation | Rare | Occasional transient irritation, generally in sensitive individuals or high concentrations. |
Allergic contact dermatitis | Very rare | Sensitization to acrylate polymers is uncommon; residual acrylic monomers are a more typical trigger than the cured polymer. |
Eye irritation | Rare | Possible if product accidentally contacts the eyes. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.