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POLYCHLOROTRIFLUOROETHYLENE.

Insufficient Data CAS 9002-83-9 / FILM FORMING, SKIN CONDITIONING

Polychlorotrifluoroethylene (PCTFE) is a highly inert fluoropolymer recognized for its exceptional chemical resistance, minimal moisture absorption, and non-reactive profile. While broadly utilized in high-performance industrial and medical applications, its specific role and efficacy in precision skincare formulations require further dedicated research.

Summary

Film Former Barrier Agent Bulking Agent Slip Modifier

Science

Mechanism of Action

PCTFE functions primarily as an inert barrier and film-forming agent on the skin's surface. Its molecular structure prevents active biological interaction, instead focusing on creating a stable, chemically resistant film that significantly reduces moisture absorption.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Unknown
Optimal pH N/A
0 7 14

Stability

PCTFE exhibits remarkable stability, maintaining its properties across an exceptionally broad temperature range, from approximately -230°C to 201°C, and demonstrating excellent resistance to acids, bases, and oxidizing agents. Its near-zero moisture absorption further contributes to its robust stability profile.

Conflicts

  • Practical processing is challenged by its solubility, which is limited to a few highly toxic organic solvents at elevated temperatures exceeding 100°C.
  • Melt processing is difficult due to a high melting temperature and viscosity, with decomposition occurring close to its melting point.
  • Degradation during processing can release corrosive byproducts, such as hydrogen fluoride (HF), necessitating specialized corrosion-resistant equipment.
  • Slight swelling may occur in contact with halocarbon compounds, ethers, esters, and aromatic substances.

Safety

Safety Profile

CIR Status
Insufficient data
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has not specifically evaluated PCTFE, and data for fluorinated polymers are often insufficient, though PTFE has been deemed safe. PCTFE is physiologically inert and generally exhibits low toxicity, with FDA-compliant grades used in food contact, medical devices, and packaging. However, the FDA notes that further research is required to fully assess the safety of certain per- and polyfluoroalkyl substances (PFAS), including PCTFE, in cosmetic applications due to incomplete toxicological data.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Verdict

Insufficient Data

Polychlorotrifluoroethylene is an inert, highly stable polymer with potential as a barrier or film-forming agent; however, comprehensive cosmetic-specific clinical efficacy and safety data are currently insufficient, and its classification as a PFAS warrants further toxicological investigation.

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