Polysiloxane-15 is a silicone-based polymer used in cosmetic formulations to impart a smooth, silky skin feel, enhance spreadability, and form a lightweight protective film. It functions as a texture enhancer and conditioning agent rather than a therapeutic active.
| Reported effect | How often | Notes |
|---|---|---|
| Mild skin irritation | Rare | Occasional redness or stinging, typically in sensitive skin. |
| Contact dermatitis / allergic reaction | Very rare | Silicones are generally considered low-allergenic; reactions are uncommon and often linked to other formulation components. |
| Clogged pores / comedogenicity | Rare | Generally regarded as low risk, though occlusive film may contribute in acne-prone individuals. |
| Eye irritation | Uncommon | Possible transient irritation if product enters 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.