Other
POLYPROPYLENE TEREPHTHALATE
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A synthetic polyester polymer used as a bulking, viscosity-controlling, and film-forming agent in cosmetics; inert and non-bioavailable with no EU restrictions.
Polypropylene terephthalate is a condensation polymer of propylene glycol and terephthalic acid, used in cosmetic formulations as a viscosity-controlling agent, film former, and bulking agent. As a high-molecular-weight polymer it is chemically inert and not absorbed through the skin. It is not subject to EU cosmetic restrictions and carries no GHS hazard classifications. While similar in structure to polyethylene terephthalate (PET), its propylene glycol-derived backbone gives it distinct physical properties suitable for cosmetic use.
Skin benefits
- Adds viscosity and texture to cosmetic formulations
- Provides film-forming properties for improved product feel
- Inert and non-bioavailable, non-irritating
Known concerns
- Environmental concern as a microplastic in rinse-off products (OEU concern)
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related others
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.