Cyclopentasiloxane and dimethicone crosspolymer is a silicone-based blend used in skincare and cosmetics as a spreading agent and texture enhancer that imparts a smooth, silky, dry-feel finish and helps fill fine lines and pores. It functions as an occlusive emollient and carrier rather than a biologically active treatment.
| Reported effect | How often | Notes |
|---|---|---|
| Mild skin irritation | Rare | Occasional transient redness or stinging, typically in sensitive or compromised skin. |
| Allergic contact dermatitis | Very rare | Silicones are largely inert; true sensitization is exceptionally uncommon. |
| Acne or clogged pores | Rare | Generally considered non-comedogenic, but occlusive buildup may aggravate breakouts in acne-prone individuals. |
| Eye irritation | Uncommon | May cause temporary irritation with direct ocular contact. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.