CIR Review Summary May 6, 2026 3 min read

Modified Terephthalate Polymers: CIR Safety Assessment Summary

CIR safety assessment summary for Modified Terephthalate Polymers: ingredients reviewed, panel verdict, use concentration context, conditions, and source.

Modified Terephthalate Polymers appears in a CIR safety assessment covering Modified Terephthalate Polymers. The panel verdict for the report is safe. The Panel concluded that the following ingredients are safe in the present practices of use and concentration described in this safety assessment:  Adipic acid/1,4-butanediol/terephthalate copolymer*,  polybutylene terephthalate,  polyethylene isoterephthalate,  polyethylene terephthalate,  polypentaerythrityl terephthalate*,  polypropylene terephthalate. The * indicates not in current use.

FieldCIR value
Primary ingredientModified Terephthalate Polymers
CIR verdictsafe
Report typeSafety Assessment
Date2014
CAS numbers55231-08-8, 24968-12-5, 26062-94-2, 25038-59-9
Use concentration contextpresent practices of use and concentration described in the safety assessment
Conditions or carve-outsThe Panel concluded that the following ingredients are safe in the present practices of use and concentration described in this safety assessment:  Adipic acid/1,4-butanediol/terephthalate copolymer*,  polybutylene terephthalate,  polyethylene isoterephthalate,  polyethylene terephthalate,  polypentaerythrityl terephthalate*,  polypropylene terephthalate.

Ingredients Reviewed

The review scope matters because CIR conclusions often apply to an ingredient family rather than a single INCI name. In this report, the ingredient list includes Modified Terephthalate Polymers.

Safety Conclusion

The conclusion for Modified Terephthalate Polymers should be read as a CIR panel conclusion, not a regulatory limit. CIR assessments summarize expert-panel safety determinations for cosmetic use, while legal status still depends on the jurisdiction and product category.

For use levels, the report gives this concentration context: present practices of use and concentration described in the safety assessment. That language is the safe-use context shown for this page.

Formulation Reading

For formula review, begin with the exact INCI identity and the ingredient group covered by the CIR assessment. If the material is Modified Terephthalate Polymers, the relevant comparison is whether the intended use aligns with the practices, concentration ranges, and conditions described in the CIR source.

The ingredient hub at Modified Terephthalate Polymers should carry the substance-level profile. This page is the report-level summary, keeping the conclusion, ingredient scope, and use-context language attached to the CIR source rather than treating the conclusion as a universal permission.

Why This Page Exists

CIR reviews are long documents, and the practical answer is usually buried in the conclusion and the table of current practices. This summary keeps those CIR facts in one indexable page for Modified Terephthalate Polymers, with source details retained at the bottom for audit.


Source

  • CIR report: Safety Assessment of Modified Terephthalate Polymers as Used in Cosmetics Lillian C. Becker1, Wilma F. Bergfeld2, Donald V. Belsito2, Ronald A. Hill2, Curtis D. Klaassen2, Daniel C. Liebler2, James G. Marks Jr2, Ronald C. Shank2, Thomas J.
  • CIR source file: PRS629.pdf
  • Extraction JSON: Source documentation archived.
  • Conclusion page in CIR extraction: 10