Methyl Methacrylate Crosspolymer is a synthetic polymer used in cosmetics as a film-former and oil-absorbing powder that imparts a smooth, soft-focus, matte feel to formulations. It functions primarily as a sensory and texturizing base ingredient rather than a skin-treatment active.
| Reported effect | How often | Notes |
|---|---|---|
Skin irritation or redness | Rare | Generally considered non-irritating; isolated reactions possible in sensitive individuals. |
Allergic contact dermatitis | Very rare | Cured crosspolymer is largely inert; methacrylate sensitivity is more associated with uncured monomers, not this finished polymer. |
Pore congestion or comedogenicity | Rare | Low comedogenic potential reported, but heavy powder formulations may feel occlusive for some. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.