POLYBUTYLENE TEREPHTHALATE is graded A (Safe) by Expert·ING, based on COSING, FDA regulatory data.

POLYBUTYLENE TEREPHTHALATE

Safety grade: A

A synthetic plastic polymer that creates a smooth, flexible film on skin or products. It's the same type of material used in some textiles and packaging.

This ingredient forms a protective layer on the skin or product surface while helping to control thickness and texture, ensuring smooth application and long-lasting wear.

Graded using: COSING, FDA.

Last verified: May 26, 2026