PTFE (polytetrafluoroethylene) is an inert synthetic fluoropolymer used in cosmetics as a slip, blurring, and texture-enhancing agent, giving products a smooth, silky feel and improving spreadability. It is chemically stable and biologically inactive on the skin surface.
| Reported effect | How often | Notes |
|---|---|---|
| Mild irritation or sensitivity | Rare | Uncommon given its inert nature; possible in very sensitive skin or with impurities. |
| Contact allergy/dermatitis | Very rare | PTFE itself is essentially non-allergenic; reactions usually relate to other formulation components. |
| Pore congestion | Rare | Inert particles may theoretically contribute to occlusion in heavy formulations, but evidence is limited. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.